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- // Treinamento
- #include <bits/stdc++.h>
- using namespace std;
- void ordena_vetor(vector<int>& v) {
- for (int i = 0; i < (int)v.size() - 1; i++) {
- for (int j = i + 1; j < (int)v.size(); j++) {
- if (v[i] > v[j]) {
- int aux = v[i];
- v[i] = v[j];
- v[j] = aux;
- }
- }
- }
- }
- int main() {
- int n;
- cin >> n;
- vector<int> a(n);
- for (int i = 0; i < n; i++) {
- cin >> a[i];
- }
- ordena_vetor(a);
- // cout << "vetor: ";
- // for (auto& e:a) {
- // cout << e << ' ';
- // }
- // cout << '\n';
- int aux = a.front();
- int contador = 1;
- for (int i = 1; i < n; i++) {
- if (aux != a[i]) {
- aux = a[i];
- contador++;
- }
- }
- cout << contador << endl;
- return 0;
- }
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