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
    int c=0;
    if(mode){ 
       
        c=int(reg);
        c |=(1<<pos);
        return (unsigned char)c;

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

}

}

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