#include <vector>
#include <algorithm>
#include <iostream>
#include <set>
#include <cmath>
#include <map>
#include <random>
#include <cassert>
#include <ctime>
#include <cstdlib>
#include <limits.h>
using namespace std;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int N; cin >> N;
map<string,int> myMap;
for (int i = 0; i < N; i++) {
string x; cin >> x;
myMap[x]++;
}
for (int i = 0; i < N - 1; i++) {
string x; cin >> x;
myMap[x]--;
}
//cout << *(s.begin());
for (auto& p: myMap) {
if (p.second == 1) {
cout << p.first;
exit(0);
}
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
52 ms |
5316 KB |
Output is correct |
7 |
Correct |
74 ms |
7800 KB |
Output is correct |
8 |
Correct |
99 ms |
9420 KB |
Output is correct |
9 |
Correct |
114 ms |
10388 KB |
Output is correct |
10 |
Correct |
112 ms |
10360 KB |
Output is correct |