Hello, guys. Can you tell me, why i got TL for this?


#define _USE_MATH_DEFINES

#include <stdio.h>
#include <math.h>

struct Point
{
    float x;
    float y;
};

int main()
{
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);

    int nPins = 0;
    float pinRadius = 0;
    scanf("%d %f\n", &nPins, &pinRadius);

    Point points[101];
    for (int i = 0; i < nPins; i++) {
        scanf("%f %f\n", &points[i].x, &points[i].y);
    }

    float len = 2*M_PI*pinRadius;
    for (int i = 1; i < nPins; i++) {
        len += sqrt(pow(points[i].x - points[i-1].x, 2) +
                    pow(points[i].y - points[i-1].y, 2));
    }
    len += sqrt(pow(points[0].x - points[nPins-1].x, 2) +
                pow(points[0].y - points[nPins-1].y, 2));

    printf("%.2f\n", len);
    return 0;
}