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

    //unsigned char reg;
    //int pos;
    //int mode;

    //This means that if during function declartion itself you define the variables with their types you dont have to define them again.

    if (mode == 0)
    {
        reg &= (~(1<<pos));
    }

    else
    {
        reg |= (1<< 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