Bit Operations using Macros

Code

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

// Define bitwise macros here
#define setb(a,b) (a|=(1<<b))
#define clrb(a,b) (a&=~(1<<b))
#define tglb(a,b) (a^=(1<<b))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    setb(reg,2);
    setb(reg,7);
    clrb(reg,3);
    tglb(reg,5);

    return reg;
}

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

Solving Approach