Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SET2 2
#define SET7 7
#define CLEAR 3
#define TOGGLE 5

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg|=(1<<SET2)|(1<<SET7);
    reg&=~(1<<CLEAR);
    reg^=(1<<TOGGLE);
    return reg;
}

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

Solving Approach