Submission #3935654

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Source Code Expand

use std::io::*;
use std::str::FromStr;
use std::collections::HashMap;
use std::collections::BTreeSet;
use std::cmp;
use std::num::Wrapping; // overflowを回避
use std::f64::consts;


fn main() {
    let input: f32 = read();
    let mut ans: f32 = input / 1000.0;
    let mut out: String = String::from("");

    if input < 100.0 {
        out = format!("{}{}", 0, 0);
    } else if input <= 5000.0 {
        let tmp = (ans*10.0).to_string();
        if tmp.len() == 1 {
            out = format!("0{}", (ans*10.0).to_string());
        } else {
            out = format!("{}", (ans*10.0).to_string());
        }
    } else if input <= 30000.0 {
        out = format!("{}", (ans+50.0).to_string());
    } else if input <= 70000.0 {
        out = format!("{}", ((ans-30.0)/5.0+80.0).to_string());
    } else {
        out = format!("89");
    }

    println!("{}", out);
}

fn read<T: FromStr>() -> T {
    let stdin = stdin();
    let stdin = stdin.lock();
    let token: String = stdin
        .bytes()
        .map(|c| c.expect("failed to read char") as char)
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect();
    token.parse().ok().expect("failed to parse token")
}

Submission Info

Compile Error

warning: unused import: `std::collections::HashMap`, #[warn(unused_imports)] on by default
 --> ./Main.rs:3:5
  |
3 | use std::collections::HashMap;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^

warning: unused import: `std::collections::BTreeSet`, #[warn(unused_imports)] on by default
 --> ./Main.rs:4:5
  |
4 | use std::collections::BTreeSet;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^

warning: unused import: `std::cmp`, #[warn(unused_imports)] on by default
 --> ./Main.rs:5:5
  |
5 | use std::cmp;
  |     ^^^^^^^^

warning: unused import: `std::num::Wrapping`, #[warn(unused_imports)] on by default
 --> ./Main.rs:6:5
  |
6 | use std::num::Wrapping; // overflowを回避
  |     ^^^^^^^^^^^^^^^^^^

warning: unused import: `std::f64::consts`, #[warn(unused_imports)] on by default
 --> ./Main.rs:7:5
  |
7 | use std::f64::consts;
  |     ^^^^^^^^^^^^^^^^

warning: value assigned to `out` is never read, #[warn(unused_assignments)] on by default
  --> ./Main.rs:13:9
   |
13 |     let mut out: String = String::from("");
   |         ^...

Judge Result