How exactly did this happen in this c++ output window? Answered

Well this is a pretty easy program i made while practicing, by mistake i entered "a", as the first element of my matrix and the whole program displayed results(i wasn't able to add other elements it directly displayed the results") 

The code which i used:

#include<iostream.h>
#include<conio.h>
#include<iomanip.h>
void read(int a[][10],int r,int c)
{
     for(int i=0;i<r; i++)
     {
             for(int j=0;j<c;j++)
             {
                     cin>>a[i][j];
             }
     }
}
void display(int a[][10], int x, int y)
      {
           cout<<endl;
           for(int i=0; i<x; i++)
                   {
                        for(int j=0; j<y; j++)
                                cout<<setw(5)<<a[i][j]<<" ";
                        cout<<endl;
                   }
      }
void displayt(int a[][10],int r,int c)
{
     for(int i=0;i<c; i++)
             {
                      for(int j=0;j<r;j++)
                              cout<<setw(5)<<a[j][i]<<" ";
                      cout<<endl;
             }
}
int main()
{
    int m,n;
    int a[10][10],b[10][10];
    cout<<"Enter the dimensions\n";
    cin>>m>>n;
    cout<<"Enter the first matrix\n";
    read(a,m,n);
    cout<<"entered matrix:\n";
    display(a,m,n);
    cout<<"Transpose:\n";
    displayt(a,m,n);
    getch();
    return 0;

}