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
    uint8_t match = 0;
    for (int i=0 ; i<16; i++) {
        uint16_t left = reg >> (16-i);
        uint16_t rotated_reg = (reg << i) | left;
        if (rotated_reg == target) {
            match = 1;
            break;
        }
    }
    return match;
}

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