Detect Circular Pattern Match

Code

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    for(int i=0;i<16;i++)
    {
        uint16_t rot=(reg<<i | reg>>(16-i));
        rot&=0xffff;
        uint16_t val=(reg>>i | reg<<(16-i));
        val&=0xffff;
        if(rot==target || val==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