Bit Operations using Macros

Code

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

// Define bitwise macros here , also keep in mind that space isnt allowed to define the macros
#define set_bit(r,b) ((r) |= (1 << (b))) 
#define clear_bit(r,b) (r &= ~(1 << b))
#define toggel_bit(r,b) (r ^= (1 << b))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    set_bit (reg , 2);
    set_bit (reg , 7);
    clear_bit (reg , 3);
    toggel_bit (reg , 5);
    return reg;
}

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

Solving Approach