// Calcolo della matrice trasposta

#include <iostream>
#include <fstream>
#include <math.h>
using namespace std;

#define NR 2
#define NC 3

int main() {

  double A[NR][NC];
  fstream f;
  
  f.open("matrici.dat",ios::in);
  
  for (int i = 0; i < NR; i++) {
    for (int j = 0; j < NC; j++) {
      f >> A[i][j];
    }
  }
  
  if ( f.fail() ) {
    cout << "Errore nell'apertura di 'matrici.dat' ==> Esco" << endl;
    return -1;
  }
  f.clear();
  f.close();
  
  cout << "La matrice A e`:" << endl;
  for (int i = 0; i < NR; i++) {
    for (int j = 0; j < NC; j++) {
      cout << A[i][j] << "   ";
    }
    cout << endl;
  }
  
  cout << "La matrice trasposta e`:" << endl;
  for (int i = 0; i < NC; i++) {
    for (int j = 0; j < NR; j++) {
      cout << A[j][i] << "   ";
    }
    cout << endl;
  }

  return 0;

}