Bit Operations using Macros

Code

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

// Define bitwise macros here
#define set2_bit(x)     (x|=1<<2)
#define set7_bit(x)    (x|=1<<7)
#define clear3_bit(x)   (x&=~(1<<3))
#define toggle5_bit(x)  (x^=1<<5)

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
   reg= set2_bit(reg);
   reg= set7_bit(reg);
   reg= clear3_bit(reg);
   reg= toggle5_bit(reg);
    return reg;
}

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

Solving Approach