1. Set or Clear a Specific Bit in a Register

#include <stdio.h>

unsigned char modifyBit(unsigned char reg, int pos, int mode) 
{
    // Write your code here
    unsigned char binary = reg;
    //int n = pos;
    //int set = mode;
    if (mode == 1)
    {
        binary |= (1<< pos);
    }
    else if (mode == 0)
    {
        binary &= ~(1<< pos);
    }
    else
    {
        //do nothing
    }
    return binary;
}

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