33. Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    int n=16;
    while(n)
    {
        if(reg & 1U)
            reg = (reg >>1) + 0x8000;
        else
            reg >>= 1;

        if(reg == target)
            return 1;
        n--;
    }
    return 0;
}

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