Check if K-th Bit is Set

Code

#include <stdio.h>

int isKthBitSet(int n, int k) {
     int reg,temp;
     reg = (n ^ (1<<k));
     if ((n-reg) == (1<<k) )
     { temp=1;
     }
     else {temp=0;}
     return temp;
}

int main() {
    int n, k;
    scanf("%d %d", &n, &k);
    printf("%d", isKthBitSet(n, k));
    return 0;
}

Solving Approach