Bit Operations using Macros

Code

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

// Define bitwise macros here
#define macro(reg) (reg=(reg|(1<<2)|(1<<7))&(~(1<<3))^(1<<5))
uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg=macro(reg);
    return reg;
}

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

Solving Approach