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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. int n;
  6. cin >> n;
  7. cout << ((n % 2 == 0) || (n == 1)? n/2 : n);
  8. return 0;
  9. }
Success #stdin #stdout 0s 15232KB
stdin
13
stdout
13