33. Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    uint8_t match_flag=0;
    for(int i=0;i<16;i++){
        if(!(reg ^ target)){
            match_flag = 1;
            break;
        }
        reg=reg<<1 | reg>>(16-1);
    }
    return match_flag;
}

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