33. Detect Circular Pattern Match

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

#define  ROTL16(x, n)   ((x << n) | (x >> (16 - n)))
uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    for (int i = 0; i < 16; i++)
    {
        uint16_t check = ROTL16(reg, i);
        if (check == 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;
}