From a38bfdc8b843c5aed421837c2f85e1195f999724 Mon Sep 17 00:00:00 2001 From: Kevin Bi Date: Sun, 25 Sep 2022 15:09:57 -0400 Subject: [PATCH] Save progress --- Cargo.lock | 194 +++++++++++------- exercises/enums/enums1.rs | 7 +- exercises/enums/enums2.rs | 6 +- exercises/enums/enums3.rs | 26 ++- exercises/functions/functions1.rs | 4 +- exercises/functions/functions2.rs | 4 +- exercises/functions/functions3.rs | 4 +- exercises/functions/functions4.rs | 4 +- exercises/functions/functions5.rs | 4 +- exercises/hashmaps/hashmaps1.rs | 6 +- exercises/hashmaps/hashmaps2.rs | 8 +- exercises/hashmaps/hashmaps3.rs | 37 +++- exercises/if/if1.rs | 8 +- exercises/if/if2.rs | 6 +- exercises/intro/intro1.rs | 6 +- exercises/intro/intro2.rs | 4 +- exercises/modules/modules1.rs | 4 +- exercises/modules/modules2.rs | 6 +- exercises/modules/modules3.rs | 5 +- exercises/move_semantics/move_semantics1.rs | 4 +- exercises/move_semantics/move_semantics2.rs | 8 +- exercises/move_semantics/move_semantics3.rs | 4 +- exercises/move_semantics/move_semantics4.rs | 8 +- exercises/move_semantics/move_semantics5.rs | 4 +- exercises/move_semantics/move_semantics6.rs | 12 +- exercises/primitive_types/primitive_types1.rs | 4 +- exercises/primitive_types/primitive_types2.rs | 6 +- exercises/primitive_types/primitive_types3.rs | 4 +- exercises/primitive_types/primitive_types4.rs | 4 +- exercises/primitive_types/primitive_types5.rs | 4 +- exercises/primitive_types/primitive_types6.rs | 7 +- exercises/quiz1.rs | 10 +- exercises/strings/strings1.rs | 4 +- exercises/strings/strings2.rs | 4 +- exercises/strings/strings3.rs | 18 +- exercises/strings/strings4.rs | 22 +- exercises/structs/structs1.rs | 17 +- exercises/structs/structs2.rs | 8 +- exercises/structs/structs3.rs | 10 +- exercises/variables/variables1.rs | 4 +- exercises/variables/variables2.rs | 4 +- exercises/variables/variables3.rs | 4 +- exercises/variables/variables4.rs | 4 +- exercises/variables/variables5.rs | 4 +- exercises/variables/variables6.rs | 4 +- exercises/vecs/vecs1.rs | 4 +- exercises/vecs/vecs2.rs | 12 +- 47 files changed, 283 insertions(+), 262 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 948d0f42..9b1c31ef 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -4,18 +4,18 @@ version = 3 [[package]] name = "aho-corasick" -version = "0.7.18" +version = "0.7.19" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f" +checksum = "b4f55bd91a0978cbfd91c457a164bab8b4001c833b7f323132c0a4e1922dd44e" dependencies = [ "memchr", ] [[package]] name = "argh" -version = "0.1.5" +version = "0.1.9" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2e7317a549bc17c5278d9e72bb6e62c6aa801ac2567048e39ebc1c194249323e" +checksum = "c375edecfd2074d5edcc31396860b6e54b6f928714d0e097b983053fac0cabe3" dependencies = [ "argh_derive", "argh_shared", @@ -23,9 +23,9 @@ dependencies = [ [[package]] name = "argh_derive" -version = "0.1.5" +version = "0.1.9" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "60949c42375351e9442e354434b0cba2ac402c1237edf673cac3a4bf983b8d3c" +checksum = "aa013479b80109a1bf01a039412b0f0013d716f36921226d86c6709032fb7a03" dependencies = [ "argh_shared", "heck", @@ -36,9 +36,9 @@ dependencies = [ [[package]] name = "argh_shared" -version = "0.1.5" +version = "0.1.9" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8a61eb019cb8f415d162cb9f12130ee6bbe9168b7d953c17f4ad049e4051ca00" +checksum = "149f75bbec1827618262e0855a68f0f9a7f2edc13faebf33c4f16d6725edb6a9" [[package]] name = "assert_cmd" @@ -54,9 +54,9 @@ dependencies = [ [[package]] name = "autocfg" -version = "1.0.1" +version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a" +checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa" [[package]] name = "bitflags" @@ -78,14 +78,13 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" [[package]] name = "console" -version = "0.15.0" +version = "0.15.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a28b32d32ca44b70c3e4acd7db1babf555fa026e385fb95f18028f88848b3c31" +checksum = "89eab4d20ce20cea182308bca13088fecea9c05f6776cf287205d41a0ed3c847" dependencies = [ "encode_unicode", "libc", "once_cell", - "regex", "terminal_size", "unicode-width", "winapi 0.3.9", @@ -117,14 +116,14 @@ dependencies = [ [[package]] name = "filetime" -version = "0.2.15" +version = "0.2.17" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "975ccf83d8d9d0d84682850a38c8169027be83368805971cc4f238c2b245bc98" +checksum = "e94a7bbaa59354bc20dd75b67f23e2797b4490e9d6928203fb105c79e448c86c" dependencies = [ "cfg-if 1.0.0", "libc", "redox_syscall", - "winapi 0.3.9", + "windows-sys", ] [[package]] @@ -179,12 +178,9 @@ checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574" [[package]] name = "heck" -version = "0.3.3" +version = "0.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c" -dependencies = [ - "unicode-segmentation", -] +checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9" [[package]] name = "home" @@ -238,9 +234,9 @@ dependencies = [ [[package]] name = "itoa" -version = "1.0.2" +version = "1.0.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "112c678d4050afce233f4f2852bb2eb519230b3cf12f33585275537d7e41578d" +checksum = "6c8af84674fe1f223a982c933a0ee1086ac4d4052aa0fb8060c12c6ad838e754" [[package]] name = "kernel32-sys" @@ -266,24 +262,24 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55" [[package]] name = "libc" -version = "0.2.100" +version = "0.2.133" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a1fa8cddc8fbbee11227ef194b5317ed014b8acbf15139bd716a18ad3fe99ec5" +checksum = "c0f80d65747a3e43d1596c7c5492d95d5edddaabd45a7fcdb02b95f644164966" [[package]] name = "log" -version = "0.4.14" +version = "0.4.17" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710" +checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e" dependencies = [ "cfg-if 1.0.0", ] [[package]] name = "memchr" -version = "2.4.1" +version = "2.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a" +checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d" [[package]] name = "mio" @@ -365,9 +361,9 @@ dependencies = [ [[package]] name = "num-traits" -version = "0.2.14" +version = "0.2.15" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290" +checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd" dependencies = [ "autocfg", ] @@ -380,9 +376,9 @@ checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3" [[package]] name = "once_cell" -version = "1.10.0" +version = "1.15.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9" +checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1" [[package]] name = "predicates" @@ -399,52 +395,52 @@ dependencies = [ [[package]] name = "predicates-core" -version = "1.0.2" +version = "1.0.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "57e35a3326b75e49aa85f5dc6ec15b41108cf5aee58eabb1f274dd18b73c2451" +checksum = "da1c2388b1513e1b605fcec39a95e0a9e8ef088f71443ef37099fa9ae6673fcb" [[package]] name = "predicates-tree" -version = "1.0.3" +version = "1.0.5" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d7dd0fd014130206c9352efbdc92be592751b2b9274dff685348341082c6ea3d" +checksum = "4d86de6de25020a36c6d3643a86d9a6a9f552107c0559c60ea03551b5e16c032" dependencies = [ "predicates-core", - "treeline", + "termtree", ] [[package]] name = "proc-macro2" -version = "1.0.28" +version = "1.0.44" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5c7ed8b8c7b886ea3ed7dde405212185f423ab44682667c8c6dd14aa1d9f6612" +checksum = "7bd7356a8122b6c4a24a82b278680c73357984ca2fc79a0f9fa6dea7dced7c58" dependencies = [ - "unicode-xid", + "unicode-ident", ] [[package]] name = "quote" -version = "1.0.9" +version = "1.0.21" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7" +checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179" dependencies = [ "proc-macro2", ] [[package]] name = "redox_syscall" -version = "0.2.10" +version = "0.2.16" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8383f39639269cde97d255a32bdb68c047337295414940c68bdd30c2e13203ff" +checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a" dependencies = [ "bitflags", ] [[package]] name = "regex" -version = "1.5.5" +version = "1.6.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286" +checksum = "4c4eb3267174b8c6c2f654116623910a0fef09c4753f8dd83db29c48a0df988b" dependencies = [ "aho-corasick", "memchr", @@ -453,9 +449,9 @@ dependencies = [ [[package]] name = "regex-syntax" -version = "0.6.25" +version = "0.6.27" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b" +checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244" [[package]] name = "rustlings" @@ -477,9 +473,9 @@ dependencies = [ [[package]] name = "ryu" -version = "1.0.5" +version = "1.0.11" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e" +checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09" [[package]] name = "same-file" @@ -492,18 +488,18 @@ dependencies = [ [[package]] name = "serde" -version = "1.0.129" +version = "1.0.145" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d1f72836d2aa753853178eda473a3b9d8e4eefdaf20523b919677e6de489f8f1" +checksum = "728eb6351430bccb993660dfffc5a72f91ccc1295abaa8ce19b27ebe4f75568b" dependencies = [ "serde_derive", ] [[package]] name = "serde_derive" -version = "1.0.129" +version = "1.0.145" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e57ae87ad533d9a56427558b516d0adac283614e347abf85b0dc0cbbf0a249f3" +checksum = "81fa1584d3d1bcacd84c277a0dfe21f5b0f6accf4a23d04d4c6d61f1af522b4c" dependencies = [ "proc-macro2", "quote", @@ -512,9 +508,9 @@ dependencies = [ [[package]] name = "serde_json" -version = "1.0.81" +version = "1.0.85" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9b7ce2b32a1aed03c558dc61a5cd328f15aff2dbc17daad8fb8af04d2100e15c" +checksum = "e55a28e3aaef9d5ce0506d0a14dbba8054ddc7e499ef522dd8b26859ec9d4a44" dependencies = [ "itoa", "ryu", @@ -523,19 +519,22 @@ dependencies = [ [[package]] name = "slab" -version = "0.4.4" +version = "0.4.7" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c307a32c1c5c437f38c7fd45d753050587732ba8628319fbdf12a7e289ccc590" +checksum = "4614a76b2a8be0058caa9dbbaf66d988527d86d003c11a94fbd335d7661edcef" +dependencies = [ + "autocfg", +] [[package]] name = "syn" -version = "1.0.75" +version = "1.0.100" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b7f58f7e8eaa0009c5fec437aabf511bd9933e4b2d7407bd05273c01a8906ea7" +checksum = "52205623b1b0f064a4e71182c3b18ae902267282930c6d5462c91b859668426e" dependencies = [ "proc-macro2", "quote", - "unicode-xid", + "unicode-ident", ] [[package]] @@ -548,6 +547,12 @@ dependencies = [ "winapi 0.3.9", ] +[[package]] +name = "termtree" +version = "0.2.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "507e9898683b6c43a9aa55b64259b721b52ba226e0f3779137e50ad114a4c90b" + [[package]] name = "toml" version = "0.5.9" @@ -558,28 +563,16 @@ dependencies = [ ] [[package]] -name = "treeline" -version = "0.1.0" +name = "unicode-ident" +version = "1.0.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a7f741b240f1a48843f9b8e0444fb55fb2a4ff67293b50a9179dfd5ea67f8d41" - -[[package]] -name = "unicode-segmentation" -version = "1.8.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b" +checksum = "dcc811dc4066ac62f84f11307873c4850cb653bfa9b1719cee2bd2204a4bc5dd" [[package]] name = "unicode-width" -version = "0.1.8" +version = "0.1.10" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3" - -[[package]] -name = "unicode-xid" -version = "0.2.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3" +checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b" [[package]] name = "walkdir" @@ -635,6 +628,49 @@ version = "0.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f" +[[package]] +name = "windows-sys" +version = "0.36.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2" +dependencies = [ + "windows_aarch64_msvc", + "windows_i686_gnu", + "windows_i686_msvc", + "windows_x86_64_gnu", + "windows_x86_64_msvc", +] + +[[package]] +name = "windows_aarch64_msvc" +version = "0.36.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47" + +[[package]] +name = "windows_i686_gnu" +version = "0.36.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6" + +[[package]] +name = "windows_i686_msvc" +version = "0.36.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024" + +[[package]] +name = "windows_x86_64_gnu" +version = "0.36.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1" + +[[package]] +name = "windows_x86_64_msvc" +version = "0.36.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680" + [[package]] name = "ws2_32-sys" version = "0.2.1" diff --git a/exercises/enums/enums1.rs b/exercises/enums/enums1.rs index 511ba740..ff7af009 100644 --- a/exercises/enums/enums1.rs +++ b/exercises/enums/enums1.rs @@ -1,11 +1,12 @@ // enums1.rs // No hints this time! ;) -// I AM NOT DONE - #[derive(Debug)] enum Message { - // TODO: define a few types of messages as used below + Quit, + Echo, + Move, + ChangeColor, } fn main() { diff --git a/exercises/enums/enums2.rs b/exercises/enums/enums2.rs index 18479f87..500d2d93 100644 --- a/exercises/enums/enums2.rs +++ b/exercises/enums/enums2.rs @@ -1,11 +1,13 @@ // enums2.rs // Execute `rustlings hint enums2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - #[derive(Debug)] enum Message { // TODO: define the different variants used below + Move { x: i32, y: i32 }, + Echo(String), + ChangeColor(i32, i32, i32), + Quit, } impl Message { diff --git a/exercises/enums/enums3.rs b/exercises/enums/enums3.rs index 55acf6bc..ed12d0c0 100644 --- a/exercises/enums/enums3.rs +++ b/exercises/enums/enums3.rs @@ -2,17 +2,19 @@ // Address all the TODOs to make the tests pass! // Execute `rustlings hint enums3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - -enum Message { - // TODO: implement the message variant types based on their usage below -} - struct Point { x: u8, y: u8, } +enum Message { + // TODO: implement the message variant types based on their usage below + Move(Point), + Echo(String), + ChangeColor((u8, u8, u8)), + Quit, +} + struct State { color: (u8, u8, u8), position: Point, @@ -38,6 +40,18 @@ impl State { fn process(&mut self, message: Message) { // TODO: create a match expression to process the different message variants + match message { + Message::ChangeColor(color) => { + self.change_color(color); + } + Message::Move(point) => { + self.move_position(point); + } + Message::Echo(s) => {} + Message::Quit => { + self.quit(); + } + } } } diff --git a/exercises/functions/functions1.rs b/exercises/functions/functions1.rs index 03d8af70..6bb1f590 100644 --- a/exercises/functions/functions1.rs +++ b/exercises/functions/functions1.rs @@ -1,7 +1,9 @@ // functions1.rs // Execute `rustlings hint functions1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE +fn call_me() { + println!("Hello world!"); +} fn main() { call_me(); diff --git a/exercises/functions/functions2.rs b/exercises/functions/functions2.rs index 7d40a578..5a51bdfb 100644 --- a/exercises/functions/functions2.rs +++ b/exercises/functions/functions2.rs @@ -1,13 +1,11 @@ // functions2.rs // Execute `rustlings hint functions2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { call_me(3); } -fn call_me(num:) { +fn call_me(num: i32) { for i in 0..num { println!("Ring! Call number {}", i + 1); } diff --git a/exercises/functions/functions3.rs b/exercises/functions/functions3.rs index 3b9e585b..d3005ecb 100644 --- a/exercises/functions/functions3.rs +++ b/exercises/functions/functions3.rs @@ -1,10 +1,8 @@ // functions3.rs // Execute `rustlings hint functions3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - call_me(); + call_me(5); } fn call_me(num: u32) { diff --git a/exercises/functions/functions4.rs b/exercises/functions/functions4.rs index 65d5be4f..40677fc9 100644 --- a/exercises/functions/functions4.rs +++ b/exercises/functions/functions4.rs @@ -7,14 +7,12 @@ // in the signatures for now. If anything, this is a good way to peek ahead // to future exercises!) -// I AM NOT DONE - fn main() { let original_price = 51; println!("Your sale price is {}", sale_price(original_price)); } -fn sale_price(price: i32) -> { +fn sale_price(price: i32) -> i32 { if is_even(price) { price - 10 } else { diff --git a/exercises/functions/functions5.rs b/exercises/functions/functions5.rs index 5d762961..ee8210ab 100644 --- a/exercises/functions/functions5.rs +++ b/exercises/functions/functions5.rs @@ -1,13 +1,11 @@ // functions5.rs // Execute `rustlings hint functions5` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let answer = square(3); println!("The square of 3 is {}", answer); } fn square(num: i32) -> i32 { - num * num; + num * num } diff --git a/exercises/hashmaps/hashmaps1.rs b/exercises/hashmaps/hashmaps1.rs index fd8dd2f8..d31e5987 100644 --- a/exercises/hashmaps/hashmaps1.rs +++ b/exercises/hashmaps/hashmaps1.rs @@ -10,17 +10,17 @@ // // Execute `rustlings hint hashmaps1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - use std::collections::HashMap; fn fruit_basket() -> HashMap { - let mut basket = // TODO: declare your hash map here. + let mut basket = HashMap::new(); // Two bananas are already given for you :) basket.insert(String::from("banana"), 2); // TODO: Put more fruits in your basket here. + basket.insert(String::from("apple"), 3); + basket.insert(String::from("orange"), 4); basket } diff --git a/exercises/hashmaps/hashmaps2.rs b/exercises/hashmaps/hashmaps2.rs index 454b3e1d..5a2c546b 100644 --- a/exercises/hashmaps/hashmaps2.rs +++ b/exercises/hashmaps/hashmaps2.rs @@ -11,8 +11,6 @@ // // Execute `rustlings hint hashmaps2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - use std::collections::HashMap; #[derive(Hash, PartialEq, Eq)] @@ -34,9 +32,9 @@ fn fruit_basket(basket: &mut HashMap) { ]; for fruit in fruit_kinds { - // TODO: Put new fruits if not already present. Note that you - // are not allowed to put any type of fruit that's already - // present! + if !basket.contains_key(&fruit) { + basket.insert(fruit, 10); + } } } diff --git a/exercises/hashmaps/hashmaps3.rs b/exercises/hashmaps/hashmaps3.rs index 18dd44c9..58c26f44 100644 --- a/exercises/hashmaps/hashmaps3.rs +++ b/exercises/hashmaps/hashmaps3.rs @@ -14,8 +14,6 @@ // Execute `rustlings hint hashmaps3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - use std::collections::HashMap; // A structure to store team name and its goal details. @@ -25,6 +23,26 @@ struct Team { goals_conceded: u8, } +fn get_updated_team( + scores: &HashMap, + team_name: &str, + goals_scored: u8, + goals_against: u8, +) -> Team { + match scores.get(team_name) { + Some(team) => Team { + name: team_name.to_string(), + goals_scored: team.goals_scored + goals_scored, + goals_conceded: team.goals_conceded + goals_against, + }, + None => Team { + name: team_name.to_string(), + goals_scored: goals_scored, + goals_conceded: goals_against, + }, + } +} + fn build_scores_table(results: String) -> HashMap { // The name of the team is the key and its associated struct is the value. let mut scores: HashMap = HashMap::new(); @@ -35,11 +53,16 @@ fn build_scores_table(results: String) -> HashMap { let team_1_score: u8 = v[2].parse().unwrap(); let team_2_name = v[1].to_string(); let team_2_score: u8 = v[3].parse().unwrap(); - // TODO: Populate the scores table with details extracted from the - // current line. Keep in mind that goals scored by team_1 - // will be number of goals conceded from team_2, and similarly - // goals scored by team_2 will be the number of goals conceded by - // team_1. + + scores.insert( + team_1_name.to_string(), + get_updated_team(&scores, &team_1_name, team_1_score, team_2_score), + ); + + scores.insert( + team_2_name.to_string(), + get_updated_team(&scores, &team_2_name, team_2_score, team_1_score), + ); } scores } diff --git a/exercises/if/if1.rs b/exercises/if/if1.rs index 587e03f8..3277bda8 100644 --- a/exercises/if/if1.rs +++ b/exercises/if/if1.rs @@ -1,13 +1,17 @@ // if1.rs // Execute `rustlings hint if1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - pub fn bigger(a: i32, b: i32) -> i32 { // Complete this function to return the bigger number! // Do not use: // - another function call // - additional variables + + if (a > b) { + a + } else { + b + } } // Don't mind this for now :) diff --git a/exercises/if/if2.rs b/exercises/if/if2.rs index effddbb6..1b9b9a7b 100644 --- a/exercises/if/if2.rs +++ b/exercises/if/if2.rs @@ -4,13 +4,13 @@ // Step 2: Get the bar_for_fuzz and default_to_baz tests passing! // Execute `rustlings hint if2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - pub fn foo_if_fizz(fizzish: &str) -> &str { if fizzish == "fizz" { "foo" + } else if (fizzish == "fuzz") { + "bar" } else { - 1 + "baz" } } diff --git a/exercises/intro/intro1.rs b/exercises/intro/intro1.rs index 45c5acba..84ad63b7 100644 --- a/exercises/intro/intro1.rs +++ b/exercises/intro/intro1.rs @@ -9,8 +9,6 @@ // when you change one of the lines below! Try adding a `println!` line, or try changing // what it outputs in your terminal. Try removing a semicolon and see what happens! -// I AM NOT DONE - fn main() { println!("Hello and"); println!(r#" welcome to... "#); @@ -26,5 +24,7 @@ fn main() { println!("solve the exercises. Good luck!"); println!(); println!("The source for this exercise is in `exercises/intro/intro1.rs`. Have a look!"); - println!("Going forward, the source of the exercises will always be in the success/failure output."); + println!( + "Going forward, the source of the exercises will always be in the success/failure output." + ); } diff --git a/exercises/intro/intro2.rs b/exercises/intro/intro2.rs index efc1af20..61405c84 100644 --- a/exercises/intro/intro2.rs +++ b/exercises/intro/intro2.rs @@ -2,8 +2,6 @@ // Make the code print a greeting to the world. // Execute `rustlings hint intro2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - println!("Hello {}!"); + println!("Hello {}!", "world"); } diff --git a/exercises/modules/modules1.rs b/exercises/modules/modules1.rs index 8dd0e402..09d5ab3e 100644 --- a/exercises/modules/modules1.rs +++ b/exercises/modules/modules1.rs @@ -1,15 +1,13 @@ // modules1.rs // Execute `rustlings hint modules1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - mod sausage_factory { // Don't let anybody outside of this module see this! fn get_secret_recipe() -> String { String::from("Ginger") } - fn make_sausage() { + pub fn make_sausage() { get_secret_recipe(); println!("sausage!"); } diff --git a/exercises/modules/modules2.rs b/exercises/modules/modules2.rs index c30a3897..65ea5a83 100644 --- a/exercises/modules/modules2.rs +++ b/exercises/modules/modules2.rs @@ -3,12 +3,10 @@ // 'use' and 'as' keywords. Fix these 'use' statements to make the code compile. // Execute `rustlings hint modules2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - mod delicious_snacks { // TODO: Fix these use statements - use self::fruits::PEAR as ??? - use self::veggies::CUCUMBER as ??? + pub use self::fruits::PEAR as fruit; + pub use self::veggies::CUCUMBER as veggie; mod fruits { pub const PEAR: &'static str = "Pear"; diff --git a/exercises/modules/modules3.rs b/exercises/modules/modules3.rs index 35e07990..2e62feab 100644 --- a/exercises/modules/modules3.rs +++ b/exercises/modules/modules3.rs @@ -5,10 +5,9 @@ // from the std::time module. Bonus style points if you can do it with one line! // Execute `rustlings hint modules3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - // TODO: Complete this use statement -use ??? +use std::time::SystemTime; +use std::time::UNIX_EPOCH; fn main() { match SystemTime::now().duration_since(UNIX_EPOCH) { diff --git a/exercises/move_semantics/move_semantics1.rs b/exercises/move_semantics/move_semantics1.rs index aac6dfc3..c60ee74f 100644 --- a/exercises/move_semantics/move_semantics1.rs +++ b/exercises/move_semantics/move_semantics1.rs @@ -1,12 +1,10 @@ // move_semantics1.rs // Execute `rustlings hint move_semantics1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let vec0 = Vec::new(); - let vec1 = fill_vec(vec0); + let mut vec1 = fill_vec(vec0); println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1); diff --git a/exercises/move_semantics/move_semantics2.rs b/exercises/move_semantics/move_semantics2.rs index 64870850..63836713 100644 --- a/exercises/move_semantics/move_semantics2.rs +++ b/exercises/move_semantics/move_semantics2.rs @@ -2,12 +2,10 @@ // Make me compile without changing line 13 or moving line 10! // Execute `rustlings hint move_semantics2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let vec0 = Vec::new(); - let mut vec1 = fill_vec(vec0); + let mut vec1 = fill_vec(&vec0); // Do not change the following line! println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0); @@ -17,8 +15,8 @@ fn main() { println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1); } -fn fill_vec(vec: Vec) -> Vec { - let mut vec = vec; +fn fill_vec(vec: &Vec) -> Vec { + let mut vec = vec.to_vec(); vec.push(22); vec.push(44); diff --git a/exercises/move_semantics/move_semantics3.rs b/exercises/move_semantics/move_semantics3.rs index eaa30e33..bb830234 100644 --- a/exercises/move_semantics/move_semantics3.rs +++ b/exercises/move_semantics/move_semantics3.rs @@ -3,8 +3,6 @@ // (no lines with multiple semicolons necessary!) // Execute `rustlings hint move_semantics3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let vec0 = Vec::new(); @@ -17,7 +15,7 @@ fn main() { println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1); } -fn fill_vec(vec: Vec) -> Vec { +fn fill_vec(mut vec: Vec) -> Vec { vec.push(22); vec.push(44); vec.push(66); diff --git a/exercises/move_semantics/move_semantics4.rs b/exercises/move_semantics/move_semantics4.rs index 99834ec3..21077612 100644 --- a/exercises/move_semantics/move_semantics4.rs +++ b/exercises/move_semantics/move_semantics4.rs @@ -4,12 +4,8 @@ // function. // Execute `rustlings hint move_semantics4` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let vec0 = Vec::new(); - - let mut vec1 = fill_vec(vec0); + let mut vec1 = fill_vec(); println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1); @@ -20,7 +16,7 @@ fn main() { // `fill_vec()` no longer takes `vec: Vec` as argument fn fill_vec() -> Vec { - let mut vec = vec; + let mut vec = Vec::new(); vec.push(22); vec.push(44); diff --git a/exercises/move_semantics/move_semantics5.rs b/exercises/move_semantics/move_semantics5.rs index 36eae127..ab04f4c7 100644 --- a/exercises/move_semantics/move_semantics5.rs +++ b/exercises/move_semantics/move_semantics5.rs @@ -3,13 +3,11 @@ // adding, changing or removing any of them. // Execute `rustlings hint move_semantics5` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let mut x = 100; let y = &mut x; - let z = &mut x; *y += 100; + let z = &mut x; *z += 1000; assert_eq!(x, 1200); } diff --git a/exercises/move_semantics/move_semantics6.rs b/exercises/move_semantics/move_semantics6.rs index eb52a848..055ea5bf 100644 --- a/exercises/move_semantics/move_semantics6.rs +++ b/exercises/move_semantics/move_semantics6.rs @@ -2,24 +2,22 @@ // Execute `rustlings hint move_semantics6` or use the `hint` watch subcommand for a hint. // You can't change anything except adding or removing references. -// I AM NOT DONE - fn main() { let data = "Rust is great!".to_string(); - get_char(data); + get_char(&data); - string_uppercase(&data); + string_uppercase(data); } // Should not take ownership -fn get_char(data: String) -> char { +fn get_char(data: &String) -> char { data.chars().last().unwrap() } // Should take ownership -fn string_uppercase(mut data: &String) { - data = &data.to_uppercase(); +fn string_uppercase(mut data: String) { + data = data.to_uppercase(); println!("{}", data); } diff --git a/exercises/primitive_types/primitive_types1.rs b/exercises/primitive_types/primitive_types1.rs index 09121392..b2495460 100644 --- a/exercises/primitive_types/primitive_types1.rs +++ b/exercises/primitive_types/primitive_types1.rs @@ -2,8 +2,6 @@ // Fill in the rest of the line that has code missing! // No hints, there's no tricks, just get used to typing these :) -// I AM NOT DONE - fn main() { // Booleans (`bool`) @@ -12,7 +10,7 @@ fn main() { println!("Good morning!"); } - let // Finish the rest of this line like the example! Or make it be false! + let is_evening = false; if is_evening { println!("Good evening!"); } diff --git a/exercises/primitive_types/primitive_types2.rs b/exercises/primitive_types/primitive_types2.rs index 8730baab..5bc7a338 100644 --- a/exercises/primitive_types/primitive_types2.rs +++ b/exercises/primitive_types/primitive_types2.rs @@ -2,8 +2,6 @@ // Fill in the rest of the line that has code missing! // No hints, there's no tricks, just get used to typing these :) -// I AM NOT DONE - fn main() { // Characters (`char`) @@ -18,9 +16,7 @@ fn main() { println!("Neither alphabetic nor numeric!"); } - let // Finish this line like the example! What's your favorite character? - // Try a letter, try a number, try a special character, try a character - // from a different language than your own, try an emoji! + let your_character = 'a'; if your_character.is_alphabetic() { println!("Alphabetical!"); } else if your_character.is_numeric() { diff --git a/exercises/primitive_types/primitive_types3.rs b/exercises/primitive_types/primitive_types3.rs index fa7d019a..1e05d27a 100644 --- a/exercises/primitive_types/primitive_types3.rs +++ b/exercises/primitive_types/primitive_types3.rs @@ -2,10 +2,8 @@ // Create an array with at least 100 elements in it where the ??? is. // Execute `rustlings hint primitive_types3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let a = ??? + let a = [1; 110]; if a.len() >= 100 { println!("Wow, that's a big array!"); diff --git a/exercises/primitive_types/primitive_types4.rs b/exercises/primitive_types/primitive_types4.rs index 71fa243c..e3371784 100644 --- a/exercises/primitive_types/primitive_types4.rs +++ b/exercises/primitive_types/primitive_types4.rs @@ -2,13 +2,11 @@ // Get a slice out of Array a where the ??? is so that the test passes. // Execute `rustlings hint primitive_types4` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - #[test] fn slice_out_of_array() { let a = [1, 2, 3, 4, 5]; - let nice_slice = ??? + let nice_slice = &a[1..4]; assert_eq!([2, 3, 4], nice_slice) } diff --git a/exercises/primitive_types/primitive_types5.rs b/exercises/primitive_types/primitive_types5.rs index 4fd9141f..5cba3c15 100644 --- a/exercises/primitive_types/primitive_types5.rs +++ b/exercises/primitive_types/primitive_types5.rs @@ -2,11 +2,9 @@ // Destructure the `cat` tuple so that the println will work. // Execute `rustlings hint primitive_types5` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let cat = ("Furry McFurson", 3.5); - let /* your pattern here */ = cat; + let (name, age) = cat; println!("{} is {} years old.", name, age); } diff --git a/exercises/primitive_types/primitive_types6.rs b/exercises/primitive_types/primitive_types6.rs index ddf8b423..4d614e57 100644 --- a/exercises/primitive_types/primitive_types6.rs +++ b/exercises/primitive_types/primitive_types6.rs @@ -3,14 +3,11 @@ // You can put the expression for the second element where ??? is so that the test passes. // Execute `rustlings hint primitive_types6` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - #[test] fn indexing_tuple() { let numbers = (1, 2, 3); // Replace below ??? with the tuple indexing syntax. - let second = ???; + let second = numbers.1; - assert_eq!(2, second, - "This is not the 2nd number in the tuple!") + assert_eq!(2, second, "This is not the 2nd number in the tuple!") } diff --git a/exercises/quiz1.rs b/exercises/quiz1.rs index dbb5cdc9..e5d348de 100644 --- a/exercises/quiz1.rs +++ b/exercises/quiz1.rs @@ -10,10 +10,14 @@ // Write a function that calculates the price of an order of apples given // the quantity bought. No hints this time! -// I AM NOT DONE - // Put your function here! -// fn calculate_price_of_apples { +fn calculate_price_of_apples(apples: i32) -> i32 { + if (apples > 40) { + apples + } else { + apples * 2 + } +} // Don't modify this function! #[test] diff --git a/exercises/strings/strings1.rs b/exercises/strings/strings1.rs index 0de86a1d..fd74ea38 100644 --- a/exercises/strings/strings1.rs +++ b/exercises/strings/strings1.rs @@ -2,13 +2,11 @@ // Make me compile without changing the function signature! // Execute `rustlings hint strings1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let answer = current_favorite_color(); println!("My current favorite color is {}", answer); } fn current_favorite_color() -> String { - "blue" + "blue".to_string() } diff --git a/exercises/strings/strings2.rs b/exercises/strings/strings2.rs index 0c48ec95..87a20c78 100644 --- a/exercises/strings/strings2.rs +++ b/exercises/strings/strings2.rs @@ -2,11 +2,9 @@ // Make me compile without changing the function signature! // Execute `rustlings hint strings2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let word = String::from("green"); // Try not changing this line :) - if is_a_color_word(word) { + if is_a_color_word(word.as_str()) { println!("That is a color word I know!"); } else { println!("That is not a color word I know."); diff --git a/exercises/strings/strings3.rs b/exercises/strings/strings3.rs index e2353aec..9a5d603b 100644 --- a/exercises/strings/strings3.rs +++ b/exercises/strings/strings3.rs @@ -1,21 +1,19 @@ // strings3.rs // Execute `rustlings hint strings3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn trim_me(input: &str) -> String { // TODO: Remove whitespace from both ends of a string! - ??? + input.trim().to_string() } fn compose_me(input: &str) -> String { // TODO: Add " world!" to the string! There's multiple ways to do this! - ??? + String::from(input.to_owned() + " world!") } fn replace_me(input: &str) -> String { // TODO: Replace "cars" in the string with "balloons"! - ??? + input.replace("cars", "balloons").to_string() } #[cfg(test)] @@ -37,7 +35,13 @@ mod tests { #[test] fn replace_a_string() { - assert_eq!(replace_me("I think cars are cool"), "I think balloons are cool"); - assert_eq!(replace_me("I love to look at cars"), "I love to look at balloons"); + assert_eq!( + replace_me("I think cars are cool"), + "I think balloons are cool" + ); + assert_eq!( + replace_me("I love to look at cars"), + "I love to look at balloons" + ); } } diff --git a/exercises/strings/strings4.rs b/exercises/strings/strings4.rs index c410b562..0205f9c3 100644 --- a/exercises/strings/strings4.rs +++ b/exercises/strings/strings4.rs @@ -6,8 +6,6 @@ // before the parentheses on each line. If you're right, it will compile! // No hints this time! -// I AM NOT DONE - fn string_slice(arg: &str) { println!("{}", arg); } @@ -16,14 +14,14 @@ fn string(arg: String) { } fn main() { - ???("blue"); - ???("red".to_string()); - ???(String::from("hi")); - ???("rust is fun!".to_owned()); - ???("nice weather".into()); - ???(format!("Interpolation {}", "Station")); - ???(&String::from("abc")[0..1]); - ???(" hello there ".trim()); - ???("Happy Monday!".to_string().replace("Mon", "Tues")); - ???("mY sHiFt KeY iS sTiCkY".to_lowercase()); + string_slice("blue"); + string("red".to_string()); + string(String::from("hi")); + string("rust is fun!".to_owned()); + string("nice weather".into()); + string(format!("Interpolation {}", "Station")); + string_slice(&String::from("abc")[0..1]); + string_slice(" hello there ".trim()); + string("Happy Monday!".to_string().replace("Mon", "Tues")); + string("mY sHiFt KeY iS sTiCkY".to_lowercase()); } diff --git a/exercises/structs/structs1.rs b/exercises/structs/structs1.rs index 0d91c469..bd293298 100644 --- a/exercises/structs/structs1.rs +++ b/exercises/structs/structs1.rs @@ -2,13 +2,14 @@ // Address all the TODOs to make the tests pass! // Execute `rustlings hint structs1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - struct ColorClassicStruct { // TODO: Something goes here + red: i32, + green: i32, + blue: i32, } -struct ColorTupleStruct(/* TODO: Something goes here */); +struct ColorTupleStruct(i32, i32, i32); #[derive(Debug)] struct UnitLikeStruct; @@ -20,7 +21,11 @@ mod tests { #[test] fn classic_c_structs() { // TODO: Instantiate a classic c struct! - // let green = + let green = ColorClassicStruct { + red: 0, + green: 255, + blue: 0, + }; assert_eq!(green.red, 0); assert_eq!(green.green, 255); @@ -30,7 +35,7 @@ mod tests { #[test] fn tuple_structs() { // TODO: Instantiate a tuple struct! - // let green = + let green = ColorTupleStruct(0, 255, 0); assert_eq!(green.0, 0); assert_eq!(green.1, 255); @@ -40,7 +45,7 @@ mod tests { #[test] fn unit_structs() { // TODO: Instantiate a unit-like struct! - // let unit_like_struct = + let unit_like_struct = UnitLikeStruct; let message = format!("{:?}s are fun!", unit_like_struct); assert_eq!(message, "UnitLikeStructs are fun!"); diff --git a/exercises/structs/structs2.rs b/exercises/structs/structs2.rs index 32e311fa..7cb860a3 100644 --- a/exercises/structs/structs2.rs +++ b/exercises/structs/structs2.rs @@ -2,8 +2,6 @@ // Address all the TODOs to make the tests pass! // Execute `rustlings hint structs2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - #[derive(Debug)] struct Order { name: String, @@ -35,7 +33,11 @@ mod tests { fn your_order() { let order_template = create_order_template(); // TODO: Create your own order using the update syntax and template above! - // let your_order = + let your_order = Order { + name: String::from("Hacker in Rust"), + count: 1, + ..order_template + }; assert_eq!(your_order.name, "Hacker in Rust"); assert_eq!(your_order.year, order_template.year); assert_eq!(your_order.made_by_phone, order_template.made_by_phone); diff --git a/exercises/structs/structs3.rs b/exercises/structs/structs3.rs index 0b3615f4..e7660247 100644 --- a/exercises/structs/structs3.rs +++ b/exercises/structs/structs3.rs @@ -4,8 +4,6 @@ // Make the code compile and the tests pass! // Execute `rustlings hint structs3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - #[derive(Debug)] struct Package { sender_country: String, @@ -26,12 +24,12 @@ impl Package { } } - fn is_international(&self) -> ??? { - // Something goes here... + fn is_international(&self) -> bool { + self.sender_country != self.recipient_country } - fn get_fees(&self, cents_per_gram: i32) -> ??? { - // Something goes here... + fn get_fees(&self, cents_per_gram: i32) -> i32 { + cents_per_gram * self.weight_in_grams } } diff --git a/exercises/variables/variables1.rs b/exercises/variables/variables1.rs index f4d182ac..84de9fdc 100644 --- a/exercises/variables/variables1.rs +++ b/exercises/variables/variables1.rs @@ -2,9 +2,7 @@ // Make me compile! // Execute `rustlings hint variables1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - x = 5; + let x = 5; println!("x has the value {}", x); } diff --git a/exercises/variables/variables2.rs b/exercises/variables/variables2.rs index 641aeb8e..cffe3342 100644 --- a/exercises/variables/variables2.rs +++ b/exercises/variables/variables2.rs @@ -1,10 +1,8 @@ // variables2.rs // Execute `rustlings hint variables2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let x; + let x = 0; if x == 10 { println!("x is ten!"); } else { diff --git a/exercises/variables/variables3.rs b/exercises/variables/variables3.rs index 819b1bc7..3e38c56e 100644 --- a/exercises/variables/variables3.rs +++ b/exercises/variables/variables3.rs @@ -1,9 +1,7 @@ // variables3.rs // Execute `rustlings hint variables3` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let x: i32; + let x: i32 = 32; println!("Number {}", x); } diff --git a/exercises/variables/variables4.rs b/exercises/variables/variables4.rs index 54491b0a..8c2ddd6d 100644 --- a/exercises/variables/variables4.rs +++ b/exercises/variables/variables4.rs @@ -1,10 +1,8 @@ // variables4.rs // Execute `rustlings hint variables4` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { - let x = 3; + let mut x = 3; println!("Number {}", x); x = 5; // don't change this line println!("Number {}", x); diff --git a/exercises/variables/variables5.rs b/exercises/variables/variables5.rs index 0e670d2a..1b9d9f48 100644 --- a/exercises/variables/variables5.rs +++ b/exercises/variables/variables5.rs @@ -1,11 +1,9 @@ // variables5.rs // Execute `rustlings hint variables5` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn main() { let number = "T-H-R-E-E"; // don't change this line println!("Spell a Number : {}", number); - number = 3; // don't rename this variable + let number = 3; // don't rename this variable println!("Number plus two is : {}", number + 2); } diff --git a/exercises/variables/variables6.rs b/exercises/variables/variables6.rs index a8520122..e8314b28 100644 --- a/exercises/variables/variables6.rs +++ b/exercises/variables/variables6.rs @@ -1,9 +1,7 @@ // variables6.rs // Execute `rustlings hint variables6` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - -const NUMBER = 3; +const NUMBER: i32 = 3; fn main() { println!("Number {}", NUMBER); } diff --git a/exercises/vecs/vecs1.rs b/exercises/vecs/vecs1.rs index 4e8c4cbb..9c448fa8 100644 --- a/exercises/vecs/vecs1.rs +++ b/exercises/vecs/vecs1.rs @@ -4,11 +4,9 @@ // Make me compile and pass the test! // Execute `rustlings hint vecs1` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn array_and_vec() -> ([i32; 4], Vec) { let a = [10, 20, 30, 40]; // a plain array - let v = // TODO: declare your vector here with the macro for vectors + let v = vec![10, 20, 30, 40]; (a, v) } diff --git a/exercises/vecs/vecs2.rs b/exercises/vecs/vecs2.rs index 5bea09a2..902d1b66 100644 --- a/exercises/vecs/vecs2.rs +++ b/exercises/vecs/vecs2.rs @@ -6,13 +6,9 @@ // // Execute `rustlings hint vecs2` or use the `hint` watch subcommand for a hint. -// I AM NOT DONE - fn vec_loop(mut v: Vec) -> Vec { for i in v.iter_mut() { - // TODO: Fill this up so that each element in the Vec `v` is - // multiplied by 2. - ??? + *i *= 2; } // At this point, `v` should be equal to [4, 8, 12, 16, 20]. @@ -20,11 +16,7 @@ fn vec_loop(mut v: Vec) -> Vec { } fn vec_map(v: &Vec) -> Vec { - v.iter().map(|num| { - // TODO: Do the same thing as above - but instead of mutating the - // Vec, you can just return the new number! - ??? - }).collect() + v.iter().map(|num| num * 2).collect() } #[cfg(test)]