Submission #1701759


Source Code Expand

Copy
fn get_line() -> String {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().to_string()
}

use std::collections::VecDeque;

fn main() {
    let mut xs: VecDeque<char> = get_line().chars().collect();

    let mut res = 0i64;
    while let Some(b) = xs.pop_back() {
        if let Some(f) = xs.pop_front() {
            if b != f {
                if f == 'x' {
                    res += 1;
                    xs.push_back(b);
                }
                else if b == 'x' {
                    res += 1;
                    xs.push_front(f);
                }
                else {
                    res = -1;
                    break;
                }
            }
        }
    }

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

Submission Info

Submission Time
Task C - Inserting 'x'
User lodnix
Language Rust (1.15.1)
Score 400
Code Size 794 Byte
Status
Exec Time 3 ms
Memory 4352 KB

Test Cases

Set Name Score / Max Score Test Cases
Sample 0 / 0 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
All 400 / 400 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt
Case Name Status Exec Time Memory
0_00.txt 2 ms 4352 KB
0_01.txt 2 ms 4352 KB
0_02.txt 2 ms 4352 KB
0_03.txt 2 ms 4352 KB
1_00.txt 2 ms 4352 KB
1_01.txt 2 ms 4352 KB
1_02.txt 2 ms 4352 KB
1_03.txt 2 ms 4352 KB
1_04.txt 2 ms 4352 KB
1_05.txt 2 ms 4352 KB
1_06.txt 2 ms 4352 KB
1_07.txt 2 ms 4352 KB
1_08.txt 2 ms 4352 KB
1_09.txt 2 ms 4352 KB
1_10.txt 2 ms 4352 KB
1_11.txt 2 ms 4352 KB
1_12.txt 2 ms 4352 KB
1_13.txt 2 ms 4352 KB
1_14.txt 2 ms 4352 KB
1_15.txt 2 ms 4352 KB
1_16.txt 2 ms 4352 KB
1_17.txt 2 ms 4352 KB
1_18.txt 2 ms 4352 KB
1_19.txt 2 ms 4352 KB
1_20.txt 2 ms 4352 KB
1_21.txt 2 ms 4352 KB
1_22.txt 2 ms 4352 KB
1_23.txt 2 ms 4352 KB
1_24.txt 2 ms 4352 KB
1_25.txt 3 ms 4352 KB
1_26.txt 2 ms 4352 KB
1_27.txt 2 ms 4352 KB
1_28.txt 2 ms 4352 KB