33. Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    uint16_t n = 0;
    uint8_t flag = 0;
    while(n<16){
        target = (target << n) | (target >> (16 - n));
        if(reg == target) flag = 1;
        n+=1;
    }
    return flag;
}

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