#include<bits/stdc++.h>
using namespace std;
string ar[100005],str;
int n;
map<string,int> mp;
int main(){
cin >> n;
for(int i=0;i<n;i++){
cin >> str;
mp[str]++;
ar[i]=str;
}
for(int i=1;i<n;i++){
cin >> str;
mp[str]--;
}
for(int i=0;i<n;i++)
if(mp[ar[i]]!=0){
cout << ar[i] << endl;
break;
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
3576 KB |
Output is correct |
2 |
Correct |
4 ms |
3708 KB |
Output is correct |
3 |
Correct |
6 ms |
3848 KB |
Output is correct |
4 |
Correct |
7 ms |
3916 KB |
Output is correct |
5 |
Correct |
7 ms |
4128 KB |
Output is correct |
6 |
Correct |
145 ms |
9628 KB |
Output is correct |
7 |
Correct |
263 ms |
13456 KB |
Output is correct |
8 |
Correct |
310 ms |
17096 KB |
Output is correct |
9 |
Correct |
324 ms |
20160 KB |
Output is correct |
10 |
Correct |
318 ms |
22340 KB |
Output is correct |