Bit Operations using Macros

Code

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

// Define bitwise macros here
 #define set_2_7(x) x|=0x84;
 #define clear3(x)  x&~=(1<<3);
 #define toggle_5(x) x^=(1<<5);

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg|=0x84;
    reg=reg&~(1<<3);
    reg^=(1<<5);
    return reg;
}

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

Solving Approach