alphacademy-cpp/quito/12.6.cpp

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2023-03-02 13:58:39 +00:00
#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin >> n;
vector<string> sorrend(n);
set<string> users;
for (int i = 0; i < n; i++) {
cin >> sorrend[i];
}
cout<<endl;
for (int i = sorrend.size()-1; i >= 0; i--) {
if (!users.count(sorrend[i])) {
cout<<sorrend[i]<<endl;
users.insert(sorrend[i]);
}
}
}