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 pattern = reg;
    bool res = 0;

    for (int i = 0; i <= 30;i++){
        pattern = (pattern << 1) | (pattern >> 15);
        if (pattern == target){
            res = 1;
            break;
        }
    }
    return res;
}

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