Bit Operations using Macros

Code

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

// Define bitwise macros here
#define stwo (1<<2)
#define sseven (1<<7)
#define sthree (1<<3)
#define sfive (1<<5)

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg = (reg | stwo | sseven);
    reg = (reg & ~sthree);
    reg = (reg ^ sfive);
    return reg;
}

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

Solving Approach