Detect Circular Pattern Match

Code

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

uint16_t shift(uint16_t ip, uint8_t n){
    return (ip<<n)|(ip>>(16-n));
}

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    for(int i=0;i<16;i++){
        if(shift(reg,i)==target){
            return 1;
        }
    }
    return 0;
}

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

Solving Approach