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Program to add pairs of MxN matrices

Posted By: Easy Tutor     Category: C++ Programming     Views: 4657

Write a program to add pairs of MxN matrices. Where input should contain multiple test case. Each test case starts with two numbers R (0<R<=100) and C (0<C<=100) on a single line. The next 2R lines contain C numbers each, defining two RxC matrices to be added. Input terminates with a test case containing zero for R and C which should not be processed.

For each test case output the result of addition of the two matrices on R lines each containing C numbers. Separate each test case by a blank line.

Code for Program to add pairs of MxN matrices in C++ Programming

 # include <iostream.h>
 # include <fstream.h>
 # include <string.h>
 # include <stdlib.h>
 # include <conio.h>

 int r=0;
 int c=0;

 int matrix_a[100][100]={0};
 int matrix_b[100][100]={0};

 fstream file;

 void get_matrix_size( );
 void get_matrices_elements( );
 void add_and_show_matrices( );


 int main( )
    {
       clrscr( );

       file.open("CP-02.txt",ios::in|ios::nocreate);

       if(!file)
      {
         cout<<"\n Unable to open the input file."<<endl;
         cout<<"\n Press any key to exit.";

         getch( );
         exit(EXIT_FAILURE);
      }

       do
      {
         get_matrix_size( );
         get_matrices_elements( );
         add_and_show_matrices( );
      }
       while(r!=0 && c!=0);

       file.close( );

       getch( );
       return 0;
    }

 /*************************************************************************///---------------------------  get_matrix_size( )  ----------------------///*************************************************************************/void get_matrix_size( )
    {
       char R[5]={NULL};
       char C[5]={NULL};
       char Input[90]={NULL};

       file.getline(Input,80);

       int i=0;
       int j=0;

       do
      {
         R[i]=Input[i];
         i++;
      }
       while(Input[i]!=' ');

       r=atoi(R);
       i++;

       do
      {
         C[j]=Input[i];
         i++;
         j++;
      }
       while(Input[i]!=' ' && Input[i]!=NULL);

       c=atoi(C);
    }

 /*************************************************************************///-------------------------  get_matrices_elements( )  ------------------///*************************************************************************/void get_matrices_elements( )
    {
       for(int k=0;k<2;k++)
      {
         for(int i=0;i<r;i++)
        {
           char Elements[90]={NULL};

           file.getline(Elements,80);

           int l=0;

           for(int j=0;j<c;j++)
              {
             char Digit[5]={NULL};

             int m=0;

             do
                {
                   Digit[m]=Elements[l];
                   m++;
                   l++;
                }
             while(Elements[l]!=' ' && Elements[l]!=NULL);

             l++;

             if(k==0)
                matrix_a[i][j]=atoi(Digit);

             if(k==1)
                matrix_b[i][j]=atoi(Digit);
              }
        }
      }
    }

 /*************************************************************************///-----------------------  add_and_show_matrices( )  --------------------///*************************************************************************/void add_and_show_matrices( )
    {
       for(int i=0;i<r;i++)
      {
         for(int j=0;j<c;j++)
        cout<<" "<<(matrix_a[i][j]+matrix_b[i][j]);

          cout<<endl;
      }

       cout<<endl;
    }
  
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Easy Tutor
Easy Tutor author of Program to add pairs of MxN matrices is from United States. Easy Tutor says

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