Bit Operations using Macros

Code

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

// Define bitwise macros here
#define Setbit(x,a,b) reg=reg|(1<<a)|(1<<b)
#define Clearbit(x,a) reg&=~(1<<a)
#define Toggle(x,a) reg^=(1<<a)
uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    Setbit(reg,2,7);
    Clearbit(reg,3);
    Toggle(reg,5);
    return reg;
}

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

Solving Approach