Please explain the fourth line in this C code

Question

#include"studio.h"
void main() {
int i , j= 0, k;
k = i = 2 , j; // what's meaning of int , int ?
printf ( "%d", k );
}

can anyone please explain what's up with that int , int ..?

Answer 1

The comma operator allows you to evaluate a second expression. (a, b) returns the value of expression b.

However, because the = has a higher priority than the comma operator, the values of i, j and k are respectively 2, 0 and 2.