Bit Operations using Macros

Code

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

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

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

Solving Approach