Detect Circular Pattern Match

Code

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

static uint16_t rol16(uint16_t x, uint16_t n) {
    // Your code here
    n%=16;
    return (uint16_t)(x<<n)|(x>>(16-n)) ;
}
int detect_circular_pattern_match(uint16_t reg,uint16_t target){
    for(uint16_t i=0;i<16;i++){
        if (rol16(reg,i)==target){
            return 1;
        }
    }
           return 0;
}
int main() {
    uint16_t reg, target;
    scanf("%hu %hu", &reg, &target);
    printf("%hhu", detect_circular_pattern_match(reg, target));
    return 0;
}

Solving Approach