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
    uint32_t doubled = 0;
    uint16_t rotated =0;

    doubled = ((uint32_t)reg << 16) | reg;
    for(int i =0; i<16;i++){
        rotated = (doubled >> i) & 0xFFFF;
        if(rotated == 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