minor changes

exercises/functions/functions1.rs

@@ -1,7 +1,6 @@
 // functions1.rs
 // Make me compile! Execute `rustlings hint functions1` for hints :)
 
-// I AM NOT DONE
 fn call_me() {
     println!("Hello, world!");
 }

exercises/functions/functions2.rs

@@ -1,7 +1,6 @@
 // functions2.rs
 // Make me compile! Execute `rustlings hint functions2` for hints :)
 
-// I AM NOT DONE
 
 fn main() {
     call_me(3);

exercises/functions/functions3.rs

@@ -1,7 +1,6 @@
 // functions3.rs
 // Make me compile! Execute `rustlings hint functions3` for hints :)
 
-// I AM NOT DONE
 
 fn main() {
     call_me(6);

exercises/functions/functions4.rs

@@ -4,7 +4,6 @@
 // This store is having a sale where if the price is an even number, you get
 // 10 Rustbucks off, but if it's an odd number, it's 3 Rustbucks off.
 
-// I AM NOT DONE
 
 fn main() {
     let original_price = 51;

exercises/functions/functions5.rs

@@ -1,7 +1,6 @@
 // functions5.rs
 // Make me compile! Execute `rustlings hint functions5` for hints :)
 
-// I AM NOT DONE
 
 fn main() {
     let answer = square(3);

exercises/if/if1.rs

@@ -1,6 +1,5 @@
 // if1.rs
 
-// I AM NOT DONE
 
 pub fn bigger(a: i32, b: i32) -> i32 {
     // Complete this function to return the bigger number!

exercises/if/if2.rs

@@ -4,7 +4,6 @@
 // Step 2: Get the bar_for_fuzz and default_to_baz tests passing!
 // Execute the command `rustlings hint if2` if you want a hint :)
 
-// I AM NOT DONE
 
 pub fn fizz_if_foo(fizzish: &str) -> &str {
     if fizzish == "fizz" {

exercises/intro/intro1.rs

@@ -5,7 +5,6 @@
 // ready for the next exercise, remove the `I AM NOT DONE` comment below.
 // Execute the command `rustlings hint intro1` for a hint.
 
-// I AM NOT DONE
 
 fn main() {
     println!("Hello and");

exercises/intro/intro2.rs

@@ -2,7 +2,6 @@
 // Make the code print a greeting to the world.
 // Execute `rustlings hint intro2` for a hint.
 
-// I AM NOT DONE
 
 fn main() {
     println!("Hello {}!", "world");

exercises/move_semantics/move_semantics1.rs

@@ -1,7 +1,6 @@
 // move_semantics1.rs
 // Make me compile! Execute `rustlings hint move_semantics1` for hints :)
 
-// I AM NOT DONE
 
 fn main() {
     let vec0 = Vec::new();

exercises/move_semantics/move_semantics2.rs

@@ -2,7 +2,6 @@
 // Make me compile without changing line 13 or moving line 10!
 // Execute `rustlings hint move_semantics2` for hints :)
 
-// I AM NOT DONE
 
 fn main() {
     let vec0 : Vec<i32> = Vec::new();

exercises/move_semantics/move_semantics3.rs

@@ -3,7 +3,6 @@
 // (no lines with multiple semicolons necessary!)
 // Execute `rustlings hint move_semantics3` for hints :)
 
-// I AM NOT DONE
 
 fn main() {
     let vec0 = Vec::new();

exercises/move_semantics/move_semantics4.rs

@@ -4,7 +4,6 @@
 // freshly created vector from fill_vec to its caller.
 // Execute `rustlings hint move_semantics4` for hints!
 
-// I AM NOT DONE
 
 fn main() {
     // let vec0 = Vec::new();

exercises/move_semantics/move_semantics5.rs

@@ -3,7 +3,6 @@
 // adding, changing or removing any of them.
 // Execute `rustlings hint move_semantics5` for hints :)
 
-// I AM NOT DONE
 
 fn main() {
     let mut x = 100;

exercises/move_semantics/move_semantics6.rs

@@ -2,7 +2,6 @@
 // Make me compile! `rustlings hint move_semantics6` for hints
 // You can't change anything except adding or removing references
 
-// I AM NOT DONE
 
 fn main() {
     let data = "Rust is great!".to_string();

exercises/quiz1.rs

@@ -8,10 +8,16 @@
 // more than 40 at once, each apple only costs 1! 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_apple_price {
+fn calculate_apple_price(quantity: i32) -> i32 {
+    if quantity > 40 {
+        quantity
+    }
+    else {
+        quantity * 2
+    }
+}
 
 // Don't modify this function!
 #[test]

exercises/variables/variables1.rs

@@ -2,7 +2,6 @@
 // Make me compile!
 // Execute the command `rustlings hint variables1` if you want a hint :)
 
-// I AM NOT DONE
 
 fn main() {
     let x = 5;

exercises/variables/variables2.rs

@@ -1,7 +1,6 @@
 // variables2.rs
 // Make me compile! Execute the command `rustlings hint variables2` if you want a hint :)
 
-// I AM NOT DONE
 
 fn main() {
     let x = 10;

exercises/variables/variables3.rs

@@ -1,7 +1,6 @@
 // variables3.rs
 // Make me compile! Execute the command `rustlings hint variables3` if you want a hint :)
 
-// I AM NOT DONE
 
 fn main() {
     let mut x = 3;

exercises/variables/variables4.rs

@@ -1,7 +1,6 @@
 // variables4.rs
 // Make me compile! Execute the command `rustlings hint variables4` if you want a hint :)
 
-// I AM NOT DONE
 
 fn main() {
     let x: i32 = 100;

exercises/variables/variables5.rs

@@ -1,7 +1,6 @@
 // variables5.rs
 // Make me compile! Execute the command `rustlings hint variables5` if you want a hint :)
 
-// I AM NOT DONE
 
 fn main() {
     let number = "T-H-R-E-E"; // don't change this line

exercises/variables/variables6.rs

@@ -1,7 +1,6 @@
 // variables6.rs
 // Make me compile! Execute the command `rustlings hint variables6` if you want a hint :)
 
-// I AM NOT DONE
 
 const NUMBER: i8 = 3;
 fn main() {