🎉 complete quiz1!

This commit is contained in:
laazy 2024-03-21 22:26:17 +08:00
parent 9c6f56b836
commit 2542b5d249
17 changed files with 30 additions and 34 deletions

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@ -13,7 +13,6 @@
// Execute `rustlings hint intro1` or use the `hint` watch subcommand for a // Execute `rustlings hint intro1` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
println!("Hello and"); println!("Hello and");

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@ -5,8 +5,7 @@
// Execute `rustlings hint intro2` or use the `hint` watch subcommand for a // Execute `rustlings hint intro2` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
printline!("Hello there!") println!("Hello there!")
} }

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@ -5,9 +5,8 @@
// Execute `rustlings hint variables1` or use the `hint` watch subcommand for a // Execute `rustlings hint variables1` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
x = 5; let x = 5;
println!("x has the value {}", x); println!("x has the value {}", x);
} }

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@ -3,10 +3,9 @@
// Execute `rustlings hint variables2` or use the `hint` watch subcommand for a // Execute `rustlings hint variables2` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
let x; let x = 0;
if x == 10 { if x == 10 {
println!("x is ten!"); println!("x is ten!");
} else { } else {

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@ -3,9 +3,8 @@
// Execute `rustlings hint variables3` or use the `hint` watch subcommand for a // Execute `rustlings hint variables3` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
let x: i32; let x: i32 = 2;
println!("Number {}", x); println!("Number {}", x);
} }

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@ -3,10 +3,9 @@
// Execute `rustlings hint variables4` or use the `hint` watch subcommand for a // Execute `rustlings hint variables4` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
let x = 3; let mut x = 3;
println!("Number {}", x); println!("Number {}", x);
x = 5; // don't change this line x = 5; // don't change this line
println!("Number {}", x); println!("Number {}", x);

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@ -3,11 +3,10 @@
// Execute `rustlings hint variables5` or use the `hint` watch subcommand for a // Execute `rustlings hint variables5` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
let number = "T-H-R-E-E"; // don't change this line let number = "T-H-R-E-E"; // don't change this line
println!("Spell a Number : {}", number); 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); println!("Number plus two is : {}", number + 2);
} }

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@ -3,9 +3,8 @@
// Execute `rustlings hint variables6` or use the `hint` watch subcommand for a // Execute `rustlings hint variables6` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
const NUMBER = 3; const NUMBER: i32 = 3;
fn main() { fn main() {
println!("Number {}", NUMBER); println!("Number {}", NUMBER);
} }

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@ -3,8 +3,7 @@
// Execute `rustlings hint functions1` or use the `hint` watch subcommand for a // Execute `rustlings hint functions1` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE fn call_me(){}
fn main() { fn main() {
call_me(); call_me();
} }

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@ -3,13 +3,12 @@
// Execute `rustlings hint functions2` or use the `hint` watch subcommand for a // Execute `rustlings hint functions2` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
call_me(3); call_me(3);
} }
fn call_me(num:) { fn call_me(num:i32) {
for i in 0..num { for i in 0..num {
println!("Ring! Call number {}", i + 1); println!("Ring! Call number {}", i + 1);
} }

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@ -3,10 +3,9 @@
// Execute `rustlings hint functions3` or use the `hint` watch subcommand for a // Execute `rustlings hint functions3` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
call_me(); call_me(2);
} }
fn call_me(num: u32) { fn call_me(num: u32) {

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@ -8,14 +8,13 @@
// Execute `rustlings hint functions4` or use the `hint` watch subcommand for a // Execute `rustlings hint functions4` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
let original_price = 51; let original_price = 51;
println!("Your sale price is {}", sale_price(original_price)); println!("Your sale price is {}", sale_price(original_price));
} }
fn sale_price(price: i32) -> { fn sale_price(price: i32) -> i32 {
if is_even(price) { if is_even(price) {
price - 10 price - 10
} else { } else {

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@ -3,7 +3,6 @@
// Execute `rustlings hint functions5` or use the `hint` watch subcommand for a // Execute `rustlings hint functions5` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
fn main() { fn main() {
let answer = square(3); let answer = square(3);
@ -11,5 +10,5 @@ fn main() {
} }
fn square(num: i32) -> i32 { fn square(num: i32) -> i32 {
num * num; num * num
} }

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@ -2,9 +2,13 @@
// //
// Execute `rustlings hint if1` or use the `hint` watch subcommand for a hint. // 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 { pub fn bigger(a: i32, b: i32) -> i32 {
if a > b {
a
} else {
b
}
// Complete this function to return the bigger number! // Complete this function to return the bigger number!
// If both numbers are equal, any of them can be returned. // If both numbers are equal, any of them can be returned.
// Do not use: // Do not use:

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@ -5,13 +5,14 @@
// //
// Execute `rustlings hint if2` or use the `hint` watch subcommand for a hint. // 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 { pub fn foo_if_fizz(fizzish: &str) -> &str {
if fizzish == "fizz" { if fizzish == "fizz" {
"foo" "foo"
} else if fizzish == "fuzz" {
"bar"
} else{ } else{
1 "baz"
} }
} }

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@ -2,17 +2,16 @@
// //
// Execute `rustlings hint if3` or use the `hint` watch subcommand for a hint. // Execute `rustlings hint if3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
pub fn animal_habitat(animal: &str) -> &'static str { pub fn animal_habitat(animal: &str) -> &'static str {
let identifier = if animal == "crab" { let identifier = if animal == "crab" {
1 1
} else if animal == "gopher" { } else if animal == "gopher" {
2.0 2
} else if animal == "snake" { } else if animal == "snake" {
3 3
} else { } else {
"Unknown" 4
}; };
// DO NOT CHANGE THIS STATEMENT BELOW // DO NOT CHANGE THIS STATEMENT BELOW

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@ -13,10 +13,15 @@
// //
// No hints this time ;) // No hints this time ;)
// I AM NOT DONE
// Put your function here! // Put your function here!
// fn calculate_price_of_apples { fn calculate_price_of_apples(apple_count: u32) -> u32 {
if apple_count > 40 {
apple_count
} else {
apple_count * 2
}
}
// Don't modify this function! // Don't modify this function!
#[test] #[test]