Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SETBIT(VAL, POS) VAL |= (1 << POS) 
#define CLEARBIT(VAL, POS) VAL &= ~(1 << POS)
#define TOGGLEBIT(VAL, POS) VAL ^= (1 << POS) 

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

    reg = CLEARBIT(reg, 3);

    reg = TOGGLEBIT(reg, 5);
    
    return reg;
}

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

Solving Approach