Submission #56505574

Source Code Expand

#include <bits/stdc++.h>
using namespace std;
 
int main() {
    int N;
    cin >> N;
    vector<int> count(N+1,0); // 個数をカウント
    for(int i=0; i<2*N-1; i++) {
        int num;
        cin >> num;
        count.at(num)++;
    }
    for(int i=1; i<=N; i++) {
        // countが2ならペアが存在．1ならペアがないから2Nの番号
        if (count.at(i) == 1) {
            cout << i << endl;
            break;
        }
    }
}

Submission Info

Submission Time
Task D - 二人三脚 (Three-Legged Race)
User strkgr
Language C++ 20 (gcc 12.2)
Score 100
Code Size 474 Byte
Status AC
Exec Time 1 ms
Memory 3544 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 3
AC × 11
Set Name Test Cases
Sample sample-01.txt, sample-02.txt, sample-03.txt
All 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, sample-01.txt, sample-02.txt, sample-03.txt
Case Name Status Exec Time Memory
01-01.txt AC 1 ms 3444 KiB
01-02.txt AC 1 ms 3472 KiB
01-03.txt AC 1 ms 3408 KiB
01-04.txt AC 1 ms 3444 KiB
01-05.txt AC 1 ms 3544 KiB
01-06.txt AC 1 ms 3528 KiB
01-07.txt AC 1 ms 3408 KiB
01-08.txt AC 1 ms 3496 KiB
sample-01.txt AC 1 ms 3440 KiB
sample-02.txt AC 1 ms 3448 KiB
sample-03.txt AC 1 ms 3456 KiB