Submission #3455735

---

Source Code Expand

use std::io;
fn main() {
        //距離の変数
        let mut m = String::new();
        io::stdin().read_line(&mut m);
        let m = m.trim().parse::<f32>().expect("false")/1000.0;

        let mut vv = String::new();//通報式
        if m>70.0 {
                vv.push_str("89");
        } else if m >= 35.0 {
                vv.push_str(&((m-30.0)/5.0+80.0).to_string());
        } else if m >= 6.0 {
                vv.push_str(&(m+50.0).to_string());
        } else if m >= 0.1 {
                if m<1.0 {vv.push_str("0");}
                vv.push_str(&(m*10.0).to_string());
        } else {
                vv.push_str("00");
        }
        println!("{}", vv);
}

Submission Info

Compile Error

warning: unused result which must be used, #[warn(unused_must_use)] on by default
 --> ./Main.rs:5:9
  |
5 |         io::stdin().read_line(&mut m);
  |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Judge Result