// Calcolo della matrice trasposta

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

//#define NR 2
//#define NC 3

int main() {
  int const NR=2 , NC=3 ;
  int NC_trasp  ,NR_trasp;
  double A[NR][NC];
  double TraspA[NC][NR];
  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;
  }
  
  for (int i = 0; i < NR; i++) {
    for (int j = 0; j < NC; j++) {
       TraspA[j][i]=A[i][j];
    }
  }
  
  NR_trasp=NC;
  NC_trasp=NR;
  cout << "La matrice trasposta e`:" << endl;
  for (int i = 0; i < NR_trasp; i++) {
    for (int j = 0; j < NC_trasp; j++) {
      cout << TraspA[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;

}