Row Swap Of A Matrix

In row swap operation the rows of the matrix is swaped.............
i.e., the rows are interchanged................



Program:

#include<iostream>
#include<iomanip>
#include<windows.h>


using namespace std;




int main()
{
                            system("cls");
                            system("color a0");
                            cout<<setw(54)<<"*****---------------------*****\n";
                            cout<<setw(54)<<"*****SWAP ROWS OF A MATRIX*****\n";
                            cout<<setw(54)<<"*****---------------------*****\n";
                            cout<<"\n\n";
                            int a[100][100],i,j,m,n;
                            cout<<"\tEnter number of rows : ";
                            cin>>m;
                            cout<<"\tEnter number of columns : ";
                            cin>>n;
                            cout<<"\n\n\tEnter the matrix : \n\n";
                            for(i=0;i<m;++i)
                            {
                                for(j=0;j<n;++j)
                                {
                                    cout<<"\tEnter ["<<i<<"]["<<j<<"] : ";
                                    cin>>a[i][j];
                                }
                            }
                            cout<<"\n\n\t\t\tProcessing......";
                            Sleep(2200);
                            system("cls");
                            system("color f0");
                            cout<<"\n\n\n\t\t\tThe matrix is : \n\n";
                            for(i=0;i<m;++i)
                            {
                                cout<<"\t\t\t";
                                for(j=0;j<n;++j)
                                {
                                    cout<<a[i][j]<<" ";
                                }
                                cout<<endl;
                            }
                            for(i=0;i<m/2;++i)
                            {
                                int p=m-1;
                                for(j=0;j<n;++j)
                                {
                                    int temp=a[i][j];
                                    a[i][j]=a[p][j];
                                    a[p][j]=temp;
                                }
                                --p;
                            }
                            cout<<"\n\n\t\t\tThe swaped matrix is : \n\n";
                            for(i=0;i<m;++i)
                            {
                               cout<<"\t\t\t";
                               for(j=0;j<n;++j)
                               {
                                   cout<<a[i][j]<<" ";
                               }
                               cout<<endl;
                            }
                            return 0;
}


Output: