#include <bits/stdc++.h>
#define endl '\n'
#define space ' '
#define st first
#define nd second
#define pb push_back
#define mp make_pair
#define ii pair <int,int>
#define iii pair < int,pair <int,int> >
#define vi vector <int>
#define vii vector < pair<int,int> >
#define forr(i,A,B) for(int i=A;i<B;++i)
#define input(file) freopen(file,"r",stdin)
#define output(file) freopen(file,"w",stdout)
using namespace std;
int n;
map<string,int> h;
int main(){
cin>>n;
forr(i,0,n){
string s;
cin>>s;
h[s]++;
}
forr(i,0,n-1){
string s;
cin>>s;
h[s]--;
}
for(auto it=h.begin();it!=h.end();it++){
if((it->nd)>0){
cout<<(it->st)<<endl;
break;
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
504 KB |
Output is correct |
2 |
Correct |
2 ms |
616 KB |
Output is correct |
3 |
Correct |
3 ms |
692 KB |
Output is correct |
4 |
Correct |
4 ms |
788 KB |
Output is correct |
5 |
Correct |
4 ms |
872 KB |
Output is correct |
6 |
Correct |
130 ms |
5996 KB |
Output is correct |
7 |
Correct |
211 ms |
9364 KB |
Output is correct |
8 |
Correct |
279 ms |
12708 KB |
Output is correct |
9 |
Correct |
300 ms |
15784 KB |
Output is correct |
10 |
Correct |
314 ms |
18000 KB |
Output is correct |