Set or Clear a Specific Bit in a Register

Code

#include <stdio.h>

unsigned char clearBit(unsigned char reg, int pos){
    reg &= (~(1 << pos));
    return reg;
}

unsigned char setBit(unsigned char reg, int pos){
    reg |= (1 << pos);
    return reg;
}

unsigned char modifyBit(unsigned char reg, int pos, int mode) {
    // Write your code here
    if(mode == 0){
        return clearBit(reg, pos);
    }
    else if(mode == 1){
        return setBit(reg, 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