u10

src/u10.rs

@@ -1 +1,14 @@
-pub fn main() {}
+pub fn main() {
+    let mut v = Vec::with_capacity(20);
+    for _ in 0..20 {
+        v.push(rand::random::<f32>() * 40.0 - 20.0);
+    }
+    v.sort_by(|a, b| a.partial_cmp(b).unwrap());
+    
+    println!("{:?}", v);
+    
+    let mut input = String::new();
+    std::io::stdin().read_line(&mut input).unwrap();
+    let input: f32 = input.trim().parse().unwrap();
+    println!("{}", v.iter().position(|x| *x == input).unwrap_or(usize::MAX))
+}