feat:exercises

Author: build

exercises/clippy/clippy1.rs

@@ -9,18 +9,10 @@
 // Execute `rustlings hint clippy1` or use the `hint` watch subcommand for a
 // hint.
 
-// I AM NOT DONE
-
-use std::f32;
-
 fn main() {
-    let pi = 3.14f32;
-    let radius = 5.00f32;
-
-    let area = pi * f32::powi(radius, 2);
+    const PI: f32 = std::f32::consts::PI;
+    let radius = 5.0_f32;
+    let area = PI * radius.powi(2);
 
-    println!(
-        "The area of a circle with radius {:.2} is {:.5}!",
-        radius, area
-    )
+    println!("The area of a circle with radius {radius:.2} is {area:.5}!");
 }

exercises/clippy/clippy2.rs

@@ -1,15 +1,12 @@
 // clippy2.rs
-// 
+//
 // Execute `rustlings hint clippy2` or use the `hint` watch subcommand for a
 // hint.
 
-// I AM NOT DONE
-
 fn main() {
     let mut res = 42;
-    let option = Some(12);
-    for x in option {
+    if let Some(x) = Some(12) {
         res += x;
     }
-    println!("{}", res);
+    println!("{res}");
 }