33. 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 temp = reg;

    for (int i = 0; i < 16; i++) {
        if (temp == target)
            return 1;

        // rotate left by 1, force 16-bit result
        temp = ((temp << 1) | (temp >> 15)) & 0xFFFF;
    }
    return 0;
}

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