Detect Circular Pattern Match

Code

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

uint16_t rotate_left(uint16_t reg, uint16_t n)
{
    n = n%16;
    return ((reg << n) | ( reg >> (16-n))); 
}

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    for(int i=0; i<16; i++)
    {
        if(rotate_left(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