#include "bits\stdc++.h"
using namespace std;
int main()
{
    vector<float> vec;
    FILE *fp;
    int i;
    float x,y;
    if ((fp=fopen("D:\\Games\\1.txt","w"))==NULL)
    {
        printf("error");
    }
    else
    {
        for (int i = 0; i < 100; i++)
        {
            x=rand()/32767.0;
            y=(-0.5f)*log(x);
            vec.push_back(y);
        }
        sort(vec.begin(),vec.end());
        double sekay = 0.5;
        int ind = 0;
        while(sekay < 4)
        {
            int am = 0;
            while(ind < vec.size() && vec[ind] < sekay)
            {
                am++;
                ind++;
            }
            fprintf(fp, "From %f to %f - %d \n",sekay-0.5,sekay,am);
            sekay+=0.5;
        }
        fclose(fp);
    }
    return 0;
}