multuplication of 2*2 matrix

#include<iostream>

using namespace std;

int main()

{

                int twoDarray[2][2],twoDarray1[2][2],twoDarray2[2][2];

                cout<<"enter the values in first matrix \n";

                for(int rsize=0;rsize<2;rsize++)

                               

                {

                                for(int csize=0;csize<2;csize++)

                                {

                                       

                                      

                                                cin>>twoDarray[rsize][csize];

                                cin>>twoDarray1[rsize][csize];

                               

                            

                            

                              

                             

                                }

                                cout<<"\n";

               

                }

                for(int rsize=0;rsize<2;rsize++)

                               

                {

                                for(int csize=0;csize<2;csize++)

                                {

                                                int sum=0;

                                                for(int x=0;x<2;x++)

                                                {

                                                                sum=sum+twoDarray[rsize][x]*twoDarray1[x][rsize];

                                                }

                                twoDarray2[rsize][csize]=sum;

                               

                                }

                }

                                for(int rsize=0;rsize<2;rsize++) 

                {

                                for(int csize=0;csize<2;csize++)

                                {

                                                cout<<twoDarray2[rsize][csize]<<"\t";

                               

                                                 

                                }

                                cout<<"\n";

                               

                                }

                return 0;

}

factorial c++ programming

#include <iostream>
using namespace std;
int main()
{
int fact=1, i;
cout << "emter the number";
cin >> i;
for (int count = 1; count <=i; count++)
{
fact = fact*count;

}
cout << fact;
return 0;
}