David

#include <iostream>#include <vector>using namespace std;int main() {    vector<int> aparicions(1001,0);    int x;    cin >> x;    for (int i = 1; i <= x; ++i) {        int n;        cin >> n;        ++aparicions[n - 1000000];    }    for (int i = 0; i < aparicions.size(); ++i) {        if (aparicions[i] != 0) {            cout << 1000000 + i << " apareix " << aparicions[i] << " ";            if (aparicions[i] == 1) cout << "vegada" << endl;            else cout << "vegades" << endl;        }    }}