제출 #1114635

#제출 시각아이디문제언어결과실행 시간메모리
1114635duytuandao21마라톤 경주 (COCI14_utrka)C++17
80 / 80
134 ms25672 KiB
#include <bits/stdc++.h>
using namespace std;
#define int long long

const int N = 2e5 + 7;


string s[N];
int n;
map<string, int> mark, cnt;
signed main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> s[i];
        cnt[s[i]]++;
    }
    for (int i = 1; i < n; i++) {
        string t; cin >> t;
        mark[t]++;
    }
    for (int i = 1; i <= n; i++) {
        if (mark[s[i]] != cnt[s[i]]) {
            cout << s[i];
            break;
        }
    }
}
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