33. Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    //Circularly shift reg right (for 1 cycle)
    //Compare target & reg then check for match
    for(int i=0;i<16;i++){
        //printf("Current reg: %016b\n", reg);
        //printf("Target:      %016b\n", target);

        if (target == reg){
            return 1;
        }
        reg = (reg >> 1) | (reg << 15); //Circular shift of reg
    }
    return 0;
}

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