C++ Program to do operation on matrices

C++ Program to do operation on matrices

This is done in Code::Blocks Ide. Some modification are needed to run in Turbo C++ ide, like changing header into iostream.h, adding one more header conio.h and hence getch at the end of the program, removing using namespace std;, and all

#include<iostream>
#include<stdlib.h>
using namespace std;
class matrix
{
    int fraw,fcol,sraw,scol,i,j,k;
    int f[50][50],s[50][50],l[50][50];
public:
    void input()
    {
        cout<<"Enter number of raws and columns do you want for fisrt matrix\n";
cin>>fraw>>fcol;
cout<<"Enter number of raws(same as number of columns in first) and columns of second matrix\n";
cin>>sraw>>scol;
cout<<"Enter "<<fraw*fcol<<"elements of first matrix\n";
for(i=0;i<fraw;i++)
{
for(j=0;j<fcol;j++)
{
cin>>f[i][j];
}
}
cout<<"Enter "<<sraw*scol<<"elements of second matrix\n";
for(i=0;i<sraw;i++)
{
for(j=0;j<scol;j++)
{
cin>>s[i][j];
}
    }
    }
    void addition()
    {
        cout<<"Sum of two matrices\n";
for(i=0;i<fraw;i++)
{
for(j=0;j<fcol;j++)
{
l[i][j]=f[i][j]+s[i][j];
cout<<"\t"<<l[i][j];
}
cout<<"\n";
}
    }
void substraction()
{
    cout<<"Difference of two matrices\n";
for(i=0;i<fraw;i++)
{
for(j=0;j<fcol;j++)
{
l[i][j]=f[i][j]-s[i][j];
cout<<"\t"<<l[i][j];
}
cout<<"\n";
}
}
void multiplication()
{
    if(fcol!=sraw)
        cout<<"No of columns of First matrix and raws of second matrix is not same, multiplication is not allowed";
    else
    {
    for(i=0;i<fraw;i++)
for (j=0;j<scol;j++)
{
l[i][j]=0;
}
for(i=0;i<fraw;i++)
for (j=0;j<scol;j++)
for (k=0;k<fcol;k++)
{
l[i][j]=l[i][j]+f[i][k]*s[k][j];
}
for(i=0;i<fraw;i++)
{
for (j=0;j<scol;j++)
{
cout<<l[i][j]<<"\t";
}
cout<<"\n";
}
}
}
void read()
{
    cout<<"Elements of first matrix\n";
for(i=0;i<fraw;i++)
{
for(j=0;j<fcol;j++)
{
cout<<f[i][j]<<"\t";
}
cout<<"\n";
}
cout<<"Elements of second matrix\n";
for(i=0;i<sraw;i++)
{
for(j=0;j<scol;j++)
{
cout<<s[i][j]<<"\t";
}
cout<<"\n";
}
};
};
int main()
{
int c;
char an;
matrix a;
a.input();
do
{
    cout<<"Choose from the following options:\n";
    cout<<"1 Addition\t\t2 Subtraction\n";
    cout<<"3 Multiplication\t4 Reading\n";
    cout<<"5 Exit";
    cin>>c;
    switch (c)
    {
    case 1:
        a.addition();
        break;
    case 2:
        a.substraction();
        break;
    case 3:
        a.multiplication();
        break;
    case 4:
        a.read();
        break;
    default:
        exit(0);
    }
    cout<<"Do you want to continue: y/n";
    cin>>an;
}
while(an=='y'||an=='Y');
return 0;
}