33. Detect Circular Pattern Match

#include <stdio.h>
#include <stdint.h>
#define NUM 16

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    if(reg == target) return 1;
    
    for(int i=0;i<NUM;i++)
    {
        uint16_t a = reg<<i;
        uint16_t b = reg>>(NUM-i);
        uint16_t val = a | b;
        if(val==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;
}