제출 #1171481

#제출 시각아이디문제언어결과실행 시간메모리
1171481nuutsnoynton마라톤 경주 (COCI14_utrka)C++20
0 / 80
0 ms324 KiB
#include<bits/stdc++.h>

using namespace std;
using ll = long long;

int main() {
	ll n, m, r, x, y, i, j,p, ans, t;

	cin >> n;
	string str;
	set < string > S;
	for (i = 1; i <= n; i ++) {
		cin >> str;
		S.insert(str);
	}
	
	for (i = 1; i < n; i ++) {
		cin >> str;
		S.erase(str);
	}
	
	auto R  = S.begin();
	cout << *R << endl;
}
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