Bit Operations using Macros

Code

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

// Define bitwise macros here
#define SET_2_7_BITS(x)  ( (x) | (1<<7) | (1<<2) )
#define CLEAR_BIT_3(x)  ((x)&(~(1<<3)))
#define TOGGLE_BIT_5(x)  ((x)^(1<<5))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    return (TOGGLE_BIT_5(CLEAR_BIT_3(SET_2_7_BITS(reg))));
}

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

Solving Approach