33. Detect Circular Pattern Match

#include <iostream>
using namespace std;

int circularMatch(unsigned int reg, unsigned int target) {
    reg &= 0xFFFF;
    target &= 0xFFFF;

    for (int i = 0; i < 16; i++) {
        unsigned int rotated = ((reg << i) | (reg >> (16 - i))) & 0xFFFF;
        if (rotated == target)
            return 1;
    }
    return 0;
}

int main() {
    unsigned int reg, target;
    cin >> reg >> target;

    cout << circularMatch(reg, target);

    return 0;
}