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 == 1 )
    {
        reg |= ( 1 << pos ); // setting bit at the given position
    }
    else
    {
        reg &= ~( 1 << pos ); // resetting bit at the given position
    }
    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