Bit Operations using Macros

Code

#include <stdio.h>
#include <stdint.h>

// Define bitwise macros here
#define set(reg, n) (reg |= (1 << n))
#define clear(reg, n) (reg &= ~(1 << n))
#define toggle(reg, n) (reg ^= (1 << n))
uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    set(reg, 2);
    set(reg, 7);
    clear(reg, 3);
    toggle(reg, 5);


    return reg;
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", modify_register(reg));
    return 0;
}

Solving Approach