Two Dimensional Array in C++ Part – 2

Program 1

// Two Dimensional Array 
#include<iostream>
using namespace std;
int main()
{
    system("cls");
     int arr1[50][50],arr2[50][50],arr3[50][50],m,n;
     int r,c;
     cout<<"Enter value of row";
     cin>>m;
     cout<<"Enter value of column";
     cin>>n;

    // Read element in first matrics 
     cout<<"Enter elements in matrics:";
     for(r=0;r<m;r++)  
     {
        for(c=0;c<n;c++)
        {
             cin>>arr1[r][c];
        }
     }
    cout<<"Elements of Matrics: \n ";
     for(r=0;r<m;r++)     
     {
        for(c=0;c<n;c++)  
        {
             cout<<arr1[r][c]<<"  ";
        }
        cout<<endl;
     }
   // Read element in second matrics
   cout<<"Enter elements in matrics:";
     for(r=0;r<m;r++)  
     {
        for(c=0;c<n;c++)
        {
             cin>>arr2[r][c];
        }
     }
    cout<<"Elements of Matrics: \n ";
     for(r=0;r<m;r++)     
     {
        for(c=0;c<n;c++)  
        {
             cout<<arr2[r][c]<<"  ";
        }
        cout<<endl;
     }
     // Addition of matrics
     for(r=0;r<m;r++)     
     {
        for(c=0;c<n;c++)  
        {
              arr3[r][c]=arr1[r][c]+arr2[r][c];
        }
        cout<<endl;
     }
     cout<<"Addition is: : \n ";
     for(r=0;r<m;r++)     
     {
        for(c=0;c<n;c++)  
        {
             cout<<arr3[r][c]<<"  ";
        }
        cout<<endl;
     } 
}

Program 2

// Two Dimensional Array 
#include<iostream>
using namespace std;
int main()
{
    system("cls");
     int arr1[50][50],arr2[50][50],arr3[50][50],m,n;
     int r,c;
     cout<<"Enter value of row";
     cin>>m;
     cout<<"Enter value of column";
     cin>>n;

    // Read element in first matrics 
     cout<<"Enter elements in matrics:";
     for(r=0;r<m;r++)  
     {
        for(c=0;c<n;c++)
        {
             cin>>arr1[r][c];
        }
     }
    cout<<"Elements of Matrics: \n ";
     for(r=0;r<m;r++)     
     {
        for(c=0;c<n;c++)  
        {
             cout<<arr1[r][c]<<"  ";
        }
        cout<<endl;
     }
   // Read element in second matrics
   cout<<"Enter elements in matrics:";
     for(r=0;r<m;r++)  
     {
        for(c=0;c<n;c++)
        {
             cin>>arr2[r][c];
        }
     }
    cout<<"Elements of Matrics: \n ";
     for(r=0;r<m;r++)     
     {
        for(c=0;c<n;c++)  
        {
             cout<<arr2[r][c]<<"  ";
        }
        cout<<endl;
     }
     // Multiplication of matrics
     for(r=0;r<m;r++)                  
     {
        for(c=0;c<n;c++) 
        {
              for(int k=0;k<m;k++) 
              {
                 arr3[r][c]=arr3[r][c]+(arr1[r][k]*arr2[k][c]);
              }
        }
       cout<<endl;
     }
     cout<<"Multipilcation is: : \n ";
     for(r=0;r<m;r++)     
     {
        for(c=0;c<n;c++)  
        {
             cout<<arr3[r][c]<<"  ";
        }
        cout<<endl;
     } 
}