Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SET_BIT_2(bit)      (bit |= (1 << 2))
#define SET_BIT_7(bit)      (bit |= (1 << 7))

#define CLEAT_BIT_3(bit)    (bit &= ~(1 << 3))

#define TOGGLE_BIT_5(bit)   (bit ^= (1 << 5))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order

    SET_BIT_2(reg);
    SET_BIT_7(reg);
    CLEAT_BIT_3(reg);
    TOGGLE_BIT_5(reg);

    return reg;
}

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

Solving Approach