S3 - zad.4

#include <iostream>
#include <iomanip>
#include <vector>

typedef std::vector<std::vector<double>> Matrica;

Matrica KreirajMatricu(int br_redova, int br_kolona)
{
  return Matrica(br_redova, std::vector<double>(br_kolona));
}

int BrojRedova(Matrica m)
{
  return m.size();
}

int BrojKolona(Matrica m)
{
  return m[0].size();
}

Matrica UnesiMatricu(int br_redova, int br_kolona)
{
  auto m(KreirajMatricu(br_redova, br_kolona));
  for(int i = 0; i < br_redova; i++)
    for(int j = 0; j < br_kolona; j++) {
      std::cout << "Element (" << i + 1 << "," << j + 1 << "): ";
      std::cin >> m[i][j];
    }
  return m;
}

void IspisiMatricu(Matrica m)
{
  for(int i = 0; i < BrojRedova(m); i++)
    {
    for(int j = 0; j < BrojKolona(m); j++)
      std::cout << std::setw(10) << m[i][j];
    std::cout << std::endl;
  }
}

int main()
{
  int n;
  std::cout << "Unesi broj n: ";
  std::cin >> n;
  std::cout << "Unesi elemente matrice: "<<n<<"x"<<n<<std:: endl;
  auto A(UnesiMatricu(n, n));
  std::cout << "Matrica A:\n";
  IspisiMatricu(A);


  int red, kolona, maxi(A[0][0]);
  for(int i=0; i<n; i++)
  {
      for(int j=0; j<n; j++)
      {
          if(A[i][j]>maxi)
          {
             maxi=A[i][j];
             red=i+1;
             kolona=j+1;
          }

      }
  }


   int suma(0);
  for(int i=0; i<n; i++)
    for(int j=0; j<n; j++)
  {
      if(i==j)
        suma+=A[i][j];
  }

  std:: cout<<"Suma dijagonale je "<< suma<< std::endl;
  std:: cout<<"Maksimalni el. je u "<<red<<". redu i "<<kolona<<". koloni!";

  return 0;
}