20 lines
359 B
C++
20 lines
359 B
C++
// Distinct Numbers
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#include<bits/stdc++.h>
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using namespace std;
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using ll = long long;
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int main() {
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int count = 1;
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int n; cin >> n;
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vector<ll> i(n);
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for (auto &e: i) cin >> e;
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std::sort(i.begin(), i.end());
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for (int j = 1; j < i.size(); j++) {
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if (i[j] != i[j-1]) count ++;
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}
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cout << count << endl;
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return 0;
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}
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