33. Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    unsigned int i = 1;
    if(target == reg){
        return 1;
    }
    while(i<16){
        if(target == (((reg<<i|reg>>(16-i)))& 0xFFFF) ){
            return 1;
        }
        i++;
    }
    return 0;
}

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