This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define sz size()
#define ll long long
#define pb push_back
const int N = 3e5 + 5;
map <string, int> m;
int main () {
// freopen ("input.txt", "r", stdin);
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
int n;
cin >> n;
for (int i = 1; i <= n; ++i) {
string s, k;
cin >> s >> k;
while (1) {
string y;
cin >> y;
if (y[0] == ';') break;
}
if (m.find (s) != m.end()) {
cout << "greska\n";
}
else {
// if (i == 8) {
// cout << s << " " << k << "\n";
// return 0;
// }
cout << "ok\n";
m[s] = 1;
}
}
}
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