c++ program to generate random numbers

c++ program to add two arrays

#include

#include 

main()

{

   int first[20], second[20], c, n;

   cout << "Enter the number of elements in the array ";

   cin >> n;

   cout << "Enter elements of first array " << endl;

   for ( c = 0 ; c < n ; c++ )

      cin >> first[c];

   cout << "Enter elements of second array " << endl;

   for ( c = 0 ; c < n ; c++ )

      cin >> second[c];

   cout << "Sum of elements of two arrays " << endl;

   for ( c = 0 ; c < n ; c++ )

      cout << first[c] + second[c] << endl;

   return 0;

}

C++ program to add two matrices

#include

 #include 

main()

{

   int m, n, c, d, first[10][10], second[10][10], sum[10][10];

   cout << "Enter the number of rows and columns of matrix ";

   cin >> m >> n;

   cout << "Enter the elements of first matrix\n";

   for (  c = 0 ; c < m ; c++ )

      for ( d = 0 ; d < n ; d++ )

         cin >> first[c][d];

   cout << "Enter the elements of second matrix\n";

   for ( c = 0 ; c < m ;c++ )

      for ( d = 0 ; d < n ; d++ )

            cin >> second[c][d];

   for ( c = 0 ; c < m ; c++ )

      for ( d = 0 ; d < n ; d++ )

         sum[c][d] = first[c][d] + second[c][d];

   cout << "Sum of entered matrices:-\n";

   for ( c = 0 ; c < m ; c++ )

   {

      for ( d = 0 ; d < n ; d++ )

         cout << sum[c][d] << "\t";

      cout << endl;

   }

   return 0;

}

c++ program to generate random numbers

#include

#include

#include 

main()

{

   int n, max, num, c;

   cout << "Enter the number of random numbers you want ";

   cin >> n;

   cout << "Enter the maximum value of random number ";

   cin >> max;   

   cout << "random numbers from 0 to " << max << " are :-" << endl;

   for ( c = 1 ; c <= n ; c++ )

   {

      num = random(max);

      cout << num << endl;

   }         

   return 0;

}