Bit Operations using Macros

Code

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

// Define bitwise macros here
#define set_2_and_7(i) (i | (1<<2) | (1<<7))
#define clear_3(i) (i & ~(1<<3))
#define toggle_5(i) (i ^ (1<<5))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    
    return toggle_5(clear_3(set_2_and_7(reg)));
}

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

Solving Approach