Bit Operations using Macros

Code

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

// Define bitwise macros here
#define setbit2and7   reg |=((1<<2) | (1<<7));
#define clearbit3     reg &= ~(1<<3);
#define togglebit5    reg ^=(1<<5);

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    setbit2and7; 
    clearbit3;
    togglebit5;
    return reg;
}

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

Solving Approach