#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define MOD 1000000007
typedef long long ll;
string ans;
int n;
signed main(){
cin>>n;
for(int i=0;i<30;++i)ans+='\0';
for(int i=0;i<n+n-1;++i){
string s; cin>>s;
for(int j=0;j<(int)s.size();++j)ans[j]=ans[j]^s[j];
}
cout<<ans;
#ifdef LOCAL
cerr << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << "s.";
#endif
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |