Detect Circular Pattern Match

Code

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

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