#include <iostream>
#include <ctime>
#include <cstdlib>
#include <iomanip>
using namespace std;

int main() {
    srand(time(0));
    unsigned n=0,m=0;


    cout<<"Enter rolls: ";
    cin>>n;
    cout<<"Enter columns: ";
    cin>>m;

    double a,b;
    cout<<"Enter a & b";
    cin>>a>>b;

    if(a > b){
        double temp = a;
        a = b;
        b = temp;

    }

    double ** arr = nullptr; //указател към масив от указатели, сочещи към масиви
    //не е в Heap а в оперативната памет и се освобождава след return

    arr = new double*[n];
    for(unsigned i=0; i<n;i++){
        arr[i] = new double [m];
    }

    for(unsigned i=0; i<n; i++)//rolls
    {
        for(unsigned j =0; j<m; j++)//columns
        {
            arr[i][j] = (rand()*1./RAND_MAX)*(b-a)+a;
            cout<<setw(10)<<arr[i][j]<<"\t";
        }
        cout<<endl;
    }

    unsigned ind = (n<m)? n : m;
    for(unsigned i = 0;i<ind;i++){

        cout<< arr[i][i] << "\t";
    }

    for(int i =0, j=n-1; i<n; i++, j--){ //Kak da se naprawi s 1 broqch
        cout<< arr[i][j] <<"\t";
    }



    for (unsigned i = 0; i < n; i++) {
        delete [] arr[i];
    }
    delete [] arr;
    arr = nullptr;
    return 0;
}