//
//  main.cpp
//  Proma_Matrice
//
//  Created by Vincenzo Angelino on 22/04/16.
//  Copyright (c) 2016 akasamia. All rights reserved.
//

#include <iostream>
using namespace std;

typedef struct result_S{
    int somma;
    int differenza;
}result_T;

result_T leggiMatrice(int **m, int rows, int cols);
void leggiMatrice(int **m, int rows, int cols, int &somma, int &differenza);
void leggiMatrice(int **m, int rows, int cols, int *somma, int *differenza);
int **creaMatriceRuotata(int **m, int rows, int cols);
int **allocaMatrice(int rows, int cols);
void stampaMatrici(int **m, int **mRotate, int rows, int cols);
void stampaMatrice(int **m, int rows, int cols);

int main() {
    int rows, cols;
    int **m, **mRotate;
    int somma, differenza;
//    int *ptrSomma, *ptrDifferenza;
    
    cout << "Inserisci il numero di righe della matrice" << endl;
    cin >> rows;
    if (rows < 0){
        cout << "Impossibile inserire un numero di righe minore di 0" << endl;
        return -1;
    }
    
    cout << "Inserisci il numero di colonne della matrice" << endl;
    cin >> cols;
    if (cols < 0){
        cout << "Impossibile inserire un numero di colonne minore di 0" << endl;
        return -1;
    }
    
    m = allocaMatrice(rows, cols);
    
//    result_T result = leggiMatrice(m, rows, cols);
    leggiMatrice(m, rows, cols, somma, differenza);
    stampaMatrice(m, rows, cols);
    
  //  cout << "somma = " << result.somma << " differenza = " << result.differenza << endl;
    
//    if (result.somma + result.differenza != 0){
    if (somma+differenza !=0){
        mRotate = creaMatriceRuotata(m, rows, cols);
        stampaMatrici(m, mRotate, rows, cols);
    }
    
    return 0;
}


int **allocaMatrice(int rows, int cols){
    int **m;
    
//    m = (int**) malloc (sizeof(int*) * rows);
//    
//    for (int i = 0; i < rows; i++){
//        m[i] = (int*) malloc(sizeof(int) * cols);
//    }
    
     m = new int*[rows];
     for (int i = 0; i < rows; i++){
     m[i] = new int[cols];
     }
    
    return m;
}

result_T leggiMatrice(int **m, int rows, int cols){
    result_T result;
    
    result.somma = 0;
    
    for (int i = 0; i < rows; i++){
        for (int j = 0; j < cols; j++){
            cout << "Inserisci l'elemento di posizione " << i << ", " << j << " ";
            cin >> m[i][j];
        }
    }
    
    for (int i = 0; i < cols; i++){
        result.somma += m[0][i];
        result.somma += m[rows-1][i];
    }
    
    result.differenza = 2 * m[0][0];
    for (int i = 0; i < rows; i++){
        result.differenza -= m[i][0];
        result.differenza -= m[i][cols-1];
    }
    
    return result;
}

void leggiMatrice(int **m, int rows, int cols, int &somma, int &differenza){
    somma = 0;
    
    for (int i = 0; i < rows; i++){
        for (int j = 0; j < cols; j++){
            cout << "Inserisci l'elemento di posizione " << i << ", " << j << " ";
            cin >> m[i][j];
        }
    }
    
    for (int i = 0; i < cols; i++){
        somma += m[0][i];
        somma += m[rows-1][i];
    }
    
    differenza = 2 * m[0][0];
    for (int i = 0; i < rows; i++){
        differenza -= m[i][0];
        differenza -= m[i][cols-1];
    }
    
}

void leggiMatrice(int **m, int rows, int cols, int *somma, int *differenza){
    *somma = 0;
    
    for (int i = 0; i < rows; i++){
        for (int j = 0; j < cols; j++){
            cout << "Inserisci l'elemento di posizione " << i << ", " << j << " ";
            cin >> m[i][j];
        }
    }
    
    for (int i = 0; i < cols; i++){
        *somma += m[0][i];
        *somma += m[rows-1][i];
    }
    
    *differenza = 2 * m[0][0];
    for (int i = 0; i < rows; i++){
        *differenza -= m[i][0];
        *differenza -= m[i][cols-1];
    }
    
}



int **creaMatriceRuotata(int **m, int rows, int cols){
    int **mRotate;
    mRotate = allocaMatrice(cols, rows);
    
    int x = 0;
    for(int i = 0; i < rows; i++)
    {
        for(int j = cols-1; j >= 0; j--)
        {
            mRotate[i][x++] = m[j][i];
        }
        x = 0;
        
    }
    
    return mRotate;
}

void stampaMatrici(int **m, int **mRotate, int rows, int cols){
    cout << "Matrice originale" << endl;
    for (int i = 0; i < rows; i++){
        for (int j = 0; j < cols; j++){
            cout << m[i][j] << " ";
        }
        cout << endl;
    }
    
    cout << endl << "Matrice ruotata" <<endl;
    
    for (int i = 0; i < cols; i++){
        for (int j = 0; j < rows; j++){
            cout << mRotate[i][j] << " ";
        }
        cout << endl;
    }
    cout << endl;
}

void stampaMatrice(int **m, int rows, int cols){
    for (int i = 0; i < rows; i++){
        for (int j = 0; j < cols; j++){
            cout << m[i][j] << " ";
        }
        cout << endl;
    }
    cout << endl;
}