求教：为什么用map会WA呢
int main() {
int n, M; string s;
while (cin >> n) {
map<string, int>m;
for (int i = 0; i < n; i++) {
cin >> s; m[s] = 0;
}
cin >> M;
for (int i = 0; i < M; i++) {
cin >> s;
if (m.find(s) != m.end()) {
if (m[s] == 0) {
m[s]++; cout << "OK" << endl;
}
else cout << "REPEAT" << endl;
}
else
cout << "WRONG" << endl;
}
}
}
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map过不了的，它的常数很大，要用字典树