Detect Circular Pattern Match

Code

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    bool flag;
    for (int i=0;i<16;i++)
    {
        if ((reg & 0xFFFF) == target)
        {
            flag = true;
        }
        reg = (reg << i) | (reg >> (16-i));
        reg &= 0xFFFF;
    }
    if (flag == true)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

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

Solving Approach