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 == 0) {
    //     reg = reg & ~(1<<pos);
    // }
    // else {reg = reg | (1<<pos);}
    reg = mode ? (reg | (1<<pos)) : (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

not sure how to do without conditional execution.