Bit Operations using Macros

Code

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

// Define bitwise macros here
#define set(bit) reg |(1<<bit);
#define clear(bit) reg & (~(1<<bit))
#define toggle(bit) reg^ (1<<bit)

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg = set(2);
    reg = set(7);
    reg = clear(3);
    reg = toggle (5);
    return reg;
}

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

Solving Approach