Bit Operations using Macros

Code

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

// Define bitwise macros here
#define Bit_SET (1U<<2)|(1U<<7)
#define CLEAR   (1U<<3)
#define TOGGLE  (1U<<5)   

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

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

Solving Approach