4.1 (about needls)

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include <stddef.h>

float randomazer (float max, float min){ //random numbers from min to max
    float random;
    int i; //because time og program near 1 sec random number isnt differnt
    i=rand(); //i always be same random numbers if dont add srand
    srand(time(NULL)+i);
    random = rand();
    random = (random / RAND_MAX)*(max-min)+min;
    return(random);
}

int crossed (float y, float j, float si, float t, float l){
    j= (int)j;
    l= (int)l;
    t= (int)t;
    if (y<(t+t*j) && y>=j*t && ((si * l/2 + y >= t+t*j) || (-si * l/2 + y <= j*t)))
        return 1;
    else
        return 0;
}

int main (void){
    float max, min, ratio, pi, p;
    int width, i=0, j, g, high, t, l, n, count_crossed=0; //count_crossed - quantity of crossed needles
    scanf ("%d" "%d" "%d" "%d" "%d", &width, &high, &t, &l, &n);
    float x [n+1]; //location of center of each needl
    float y [n+1];
    float alpha [n+1];
    float si [n+1]; //array of sin of alpha

    for (i=0 ; i<n ; i++){
        max=width;
        x [i] = randomazer (max, 0);
    //  printf ("%f  ", x [i]);

        max=high;
        y [i] = randomazer (max, 0);
    //  printf ("%f  ", y [i]);

        alpha [i] = randomazer (3.14, 0);
    //  printf ("%f\n", alpha [i]);
        si [i] = sin (alpha [i]);

        for (j=0; j<high/t; j++){  //for every section
        count_crossed+=crossed (y[i], j, si [i], t, l);
        }
    //  printf ("%d\n", count_crossed);
    }

    printf("Crossed lines : ");
    printf("%d\n", count_crossed);

    printf("Between lines : ");
    printf("%d\n", n-count_crossed);

    ratio=(float)count_crossed/(n-count_crossed);
    printf("Ratio : ");
    printf("%f\n", ratio);

    p= (float)count_crossed/n;
    pi= 2 * (float)l / (t*p);
    printf("PI : ");
    printf("%f\n", pi);

    return 0;
}