Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SET_BIT(reg,bit) ((reg) | (1U << (bit)))
#define CLEAR_BIT(reg,bit) ((reg) & ~(1U << (bit)))
#define TOGGLE_BIT(reg,bit) ((reg) ^ (1U << (bit)))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg = SET_BIT(reg, 2);
    reg = SET_BIT(reg, 7);

    reg = CLEAR_BIT(reg, 3);
    
    reg = TOGGLE_BIT(reg, 5);

    return reg;
}

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

Solving Approach