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a month ago

180 B

Indexable

Never

#include <iostream>
using namespace std;
int main() {
int N;
  cin>>N;
  if(N>1){
    if(N%2==0)
      cout<<N/2;
    if(N%2 !=0)
     cout<<N;
      }
  else{
    cout<<"0";
  }
}