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
 /*  if (mode == 1) {
        // Set bit at position pos
        return reg | (1<< pos);
    } else {
        // Clear bit at position pos
        return reg & ~(1<< pos);
    }*/

    return (reg & ~(1 << pos)) | ((mode & 1) << pos);
}

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