Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    uint16_t mask;
    uint16_t left_rotate = 0;
    uint16_t right_rotate = 0;
    // if(reg > 0 && target == 0)
    // {
    //     return 0;
    // }
    for(int i = 0;i<16;i++)
    {
        mask = reg >> (16-i);
        left_rotate = (reg << i) | mask;

        if((left_rotate == target) )
        {
            return 1;
        }
    }

    for(int i = 0;i<16;i++)
    {
        mask = reg <<(16-i);
        right_rotate = (reg >> i) | mask;

        if(right_rotate == target)
        {
            return 1;
        }
    }


    return 0;
}

int main() {
    uint16_t reg, target;
    scanf("%hu %hu", &reg, &target);
    printf("%hhu", is_circular_match(reg, target));
    return 0;
}