Bit Operations using Macros

Code

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

// Define bitwise macros here
#define set_bit(reg,pos1,pos2) (reg |= (1<<pos1)|(1<<pos2))
#define reset_bit(reg,pos) (reg &= ~(1<<pos))
#define toggle_Bit(reg,pos) (reg ^= (1<<pos))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    set_bit(reg,2,7);
    reset_bit(reg,3);
    toggle_Bit(reg,5);
    return reg;
}

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

Solving Approach