Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SET    ((1 << 7) | (1 << 2))
#define CLEAR  ((1 << 3))
#define TOGGLE (1 << 5)

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg |= SET;
    reg &= ~CLEAR;
    reg ^= TOGGLE;
    
    return reg;
}

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

Solving Approach