33. Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    uint16_t a;
    for (int i = 0; i < 16; i++)
    {
        a = (((reg << i)|(reg >> (16 - i))) & 0xffff);
        if (a == 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;
}