Bit Operations using Macros

Code

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

// Define bitwise macros here
#define bit_2 (1<<2)
#define bit_3 (1<<3)
#define bit_5 (1<<5)
#define bit_7 (1<<7)

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg |= bit_2;
    reg |= bit_7;
    reg &= ~bit_3;
    reg ^= bit_5;
    return reg;
}

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

Solving Approach