Bit Operations using Macros

Code

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

// Define bitwise macros here
#define BIT_2_SET   2
#define BIT_7_SET   7
#define BIT_3_CLEAR 3
#define BIT_5_TOGG  5   

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg |= (1 << BIT_2_SET);
    reg |= (1 << BIT_7_SET);
    reg &= ~(1 << BIT_3_CLEAR);
    reg ^= (1 << BIT_5_TOGG);

    return reg;
}

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

Solving Approach