Can someone tell me why only even numbers are printed for the piece of code below???

Question

#include <iostream>
using namespace std;

int main()
{
int i=1;
int sum=0;
while(i++<=10){
cout<<i<<" ";
sum+=i;
i++;

}
cout<<"and the sum is:::"<<sum;
return 0;
}

Answer 1

notice i++ happening twice. that makes the odds get skipped.

Answer 2

because you are incrementing value of i twice