Set or Clear a Specific Bit in a Register

Code

#include <stdio.h>

unsigned char modifyBit(unsigned char reg, int pos, int mode) {
    // Write your code here
    if(mode == 0)
    {
        // To clear a bit we would and all remaining bits with 1 except for that one
        reg = reg & ~(1 << pos);
    }
    else
    {
        // To set a bit we OR the register with the bit set in its location 
        reg = reg | (1 << pos);
    }
    return reg;
}

int main() {
    unsigned char reg;
    int pos, mode;
    scanf("%hhu %d %d", &reg, &pos, &mode);
    printf("%d", modifyBit(reg, pos, mode));
    return 0;
}

Solving Approach