Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SET_BIT(r,b)  ((r) |=(1<<(b)))
#define CLEAR_BIT(r,b)  ((r) &=~(1<<(b)))
#define TOGGLE_BIT(r,b)  ((r) ^=(1<<(b)))
uint8_t modify_register(uint8_t reg) {
    SET_BIT(reg,2);
     SET_BIT(reg,7);
     CLEAR_BIT(reg,3);
     TOGGLE_BIT(reg,5);
    // Apply operations in order
    return reg;
}

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

Solving Approach