Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SETBIT(value) (((1<<2)|(1<<7))|(value))
#define CLEARBIT(value) ((~(1<<3))&(value))
#define TOGGLEBIT(value) ((1<<5)^(value))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg = SETBIT(reg);
    reg = CLEARBIT(reg);
    reg = TOGGLEBIT(reg);

    return reg;
}

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

Solving Approach