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)
    {
        reg = reg & (~(0x01 <<(pos)));
        return reg;
    }
    else if(mode == 1)
    {
        reg = reg | (0x01 << (pos));
        return reg;
    }
    return 0;
}

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

Using if else for mode selection and bit wise & for Clearing the bit from the specific position while creating the mask and | for setting the bit while creating the mask