33. Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    for (int n = 0; n < 16; n++) {
        uint16_t rotated = ((reg << n) | (reg >> (16 - n))) & 0xFFFF;
        if (rotated == 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;
}