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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6.     int N;
  7.     cin >> N;
  8.     vector<bool> u(N);
  9.     for (int i = 0; i < N; ++i) {
  10.     	if (!u[i]) u[i] = 1;
  11.     }
  12.     int cnt = 0;
  13.     for (int i = 0; i < N; ++i) {
  14.     	if (u[i]) cnt++;
  15.     }
  16.     cout<<cnt<<endl;
  17.     return 0;
  18. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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1000000
stdout
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1000000
https://ideone.com/Wytfe3
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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