Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SHIFT(n)  (1 << n) 

uint8_t modify_register(uint8_t reg) {
    reg |= SHIFT(2); 
    reg |= SHIFT(7); 
    reg &= ~(SHIFT(3)); 
    reg ^= SHIFT(5); 
    return reg;
}

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

Solving Approach