Pascal's Triangle

Program to print Pascal's Triangle :-

#include<iostream>
#include<conio>

void main()
 {
    int i,j,k,row;
      cout<<"Enter No. Of Rows:";
      cin>>row;
      for(i=0;i<row;++i)
       {
          int val=1;
          for(k=1;k<=row-i;++k)
             {
                 cout<<"  ";
               }
            for(j=0;j<=i;++j)
             {
                      cout<<val<<"  ";
                        val=val*(i-j)/(j+1);
               }
            cout<<endl<<endl;
         }
      getch();
   }