Najveci medju najmanjima (O)

#include <iostream>
using namespace std;
main()
{
      int m, n, a[500][500], min[500];

      cin >> m >> n;

      for (int i=0; i<m; i++)
      for (int j=0; j<n; j++)
      {
          cin >> a[i][j];
          min[j] = a[0][j];
      }

      for (int i=0; i<m; i++)
      for (int j=0; j<n; j++)
          if (a[i][j] < min[j])
             min[j] = a[i][j];

      int max = min[0];
      for (int i=1; i<n; i++)
      if (min[i]>max)
         max = min[i];

      cout << max << endl;

      system("PAUSE");
}