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
	for(uint8_t i = 0; i<16; i++){
		uint16_t mask = ((1 << i) - 1);
		uint16_t ext_bit = (reg & mask) << (16 - i);
		reg >>= i;
		reg |= ext_bit;

		if(reg == 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;
}