Bit Operations using Macros

Code

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

// Define bitwise macros here

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    uint8_t bit = 1 ;
    bit = bit << 2;
    reg |= bit;
    bit = bit << 1;
    reg &= (~bit);
    bit = bit << 2;
    reg ^= bit;
    bit = bit << 2;
    reg |= bit;
    return reg;
}

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

Solving Approach