+ 2
Why does this program just print odds to the screen?
#include <iostream> using namespace std; int main() { for(int i = 0; i <= 15; i++) if(i&1) cout << i << endl; return 0; }
1 Antwort
+ 7
Your if statement is a faster odd test than:
if(i%2==1)
It does a bitwise and of the number i and 1. This results in 0 for evens or 1 for odds as both bits must be 1 to result in a 1. Any non-zero value is true so odds get printed.