Submission #39729225

Source Code Expand

use std::collections::HashSet;

use proconio::input;

fn main() {
    input! {
        n: usize,
        a: [usize; n],
    };
    let mut set = HashSet::new();
    for a_i in a {
        if !set.insert(a_i) {
            set.remove(&a_i);
        }
    }
    let ans = set.len();
    println!("{}", ans);
}

Submission Info

Submission Time
Task C - Write and Erase
User bouzuya
Language Rust (1.42.0)
Score 300
Code Size 308 Byte
Status AC
Exec Time 23 ms
Memory 5552 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 11
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, sample_01.txt, sample_02.txt, sample_03.txt
Case Name Status Exec Time Memory
01.txt AC 22 ms 3620 KiB
02.txt AC 23 ms 3648 KiB
03.txt AC 18 ms 5552 KiB
04.txt AC 15 ms 3548 KiB
05.txt AC 20 ms 4756 KiB
06.txt AC 15 ms 3632 KiB
07.txt AC 11 ms 3092 KiB
08.txt AC 22 ms 3584 KiB
sample_01.txt AC 2 ms 2052 KiB
sample_02.txt AC 2 ms 2088 KiB
sample_03.txt AC 2 ms 2068 KiB