Started on abc257

atcoder/beginner_contests/abc257/src/bin/a.rs

@@ -0,0 +1,15 @@
+use proconio::input;
+
+fn main() {
+    input!{
+        n: f32,
+        x: f32,
+    };
+
+    let l = x / n;
+    let c = l.ceil() - 1.;
+
+    let chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+    println!("{}", chars.chars().nth(c as usize).unwrap());
+}