Detect Circular Pattern Match

Code

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

uint16_t rotate_left16(uint16_t reg, uint16_t i){
    return( (reg << i) | (reg>>(16-i)));
}

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    for (int i = 0; i < 16; i++) {
        if (rotate_left16(reg, i) == target)
        return true;
    }
    return false;
}


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

Solving Approach