Bit Operations using Macros

Code

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

// Define bitwise macros here

#define  Set(x) ((x) |= ((1 << 7)|(1 << 2)))
#define clear(x) (x &= ~(1 << 3))
#define toggle(x) (x ^= (1 << 5))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    Set(reg);
    clear(reg);
    toggle(reg);
    return reg;
}

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

Solving Approach