ALG -2.uhly

#include <iostream>
#include <ctime>
#include <stdlib.h>

using namespace std;

const int N = 5;

void naplneni(double **pole, const int N)
{
        for (int i = 0; i < N; i++)
        {
                for (int j = 0; j < N; j++)
                {
                        pole[i][j] = rand() % 100;
                }
        }
}

void tisk( double **pole ,const int N)
{
        for (int i = 0; i < N; i++)
        {
                for (int j = 0; j < N; j++)
                {

                        cout << pole[i][j] << "\t" ;
                }
                cout << endl;
        }
}

void vypocet(double **pole, const int N )
{
        double prevyseni, D, uhel_sklonu;


        for (int i = 1; i < N-1; i++)
        {
            double tmp = 10 ;
                for (int j = 1; j < N - 1; j++)
                {
                        for (int k = i-1; k <= i+1; k++)
                        {
                                for (int l = j-1; l <= j+1; l++)
                                {
                                        if ((k != i) || (l != j) )
                                        {
                                                prevyseni = pole[i][j] - pole[k][l];

                                                D = (i - k)*(i - k) + (j - l)*(j - l);
                                                D = sqrt(D);
                                                uhel_sklonu = prevyseni / D;
                                                uhel_sklonu = atan(uhel_sklonu);



                                                cout << uhel_sklonu << "\t" ;


                                                if (uhel_sklonu < tmp)
                                                {
                                                        tmp = uhel_sklonu;
                                                }
                                        }

                                        else  cout << "\t" ;


                                } cout << endl;

                        }       cout << "Nejmensi uhel sklonu je: " << tmp << endl;
                                cout << endl;

                }
        }
}

int main()
{
        double **pole = new double*[N];
        for (int i = 0; i < N; i++)
        {
                pole[i] = new double[N];
        }
        srand(time(NULL));
        naplneni(pole,N);
        tisk(pole ,N);
        cout << endl;
        vypocet(pole ,N);


        for (int i = 0; i < N; i++)
        {
                delete[]pole[i];
        }
        delete[]pole;
        cin.get();
        return 0;
}