33. Detect Circular Pattern Match

#include <stdio.h>
#include <stdint.h>
uint16_t i,rotate;
uint8_t is_circular_match(uint16_t reg, uint16_t target) 
{
    // Your code here
    uint32_t mask=(reg << 16 ) | reg;
    for(i=0;i<16;i++)
    {
        rotate=(mask>>i)&0xFFFF;
        if(rotate==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;
}