Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SET(REG,VAL)            (REG |= (1 << VAL))
#define CLEAR(REG,VAL)          (REG &= ~(1 << VAL))
#define TOGGLE(REG,VAL)         (REG ^= (1 << VAL))
#define CHECK(REG,VAL)          (REG &= (1 << VAL))

uint8_t modify_register(uint8_t reg) {
    
    // Apply operations in order
    SET(reg,2);
    SET(reg,7);
    CLEAR(reg,3);
    TOGGLE(reg,5);

    return reg;
}

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

Solving Approach