/*PASCAL'S TRIANGLE*/

#include<stdio.h>
#include<conio.h>
void main()
{
	int arr[10][10],n,i,j;
	clrscr();
	printf("Enter the number of lines:");
	scanf("%d",&n);
	for(i=0;i<n;++i)
	    { for(j=0;j<=i;++j)
		    {	if((i==j)||(j==0))
				arr[i][j]=1;
			 else
			    arr[i][j]=arr[i-1][j]+arr[i-1][j-1];
		    }

	    }
	printf("Pascals series\n");
	for(i=0;i<n;++i)
	{
		for(j=0;j<n-i;++j)
		 printf("  ");
		for(j=0;j<=i;++j)
		  printf(" %d  ",arr[i][j]);
		printf("\n");
	}
	getch();
}

/*OUTPUT

Enter the no. of lines: 4

Pascal's series
          1
        1   1
      1   2   1
    1   3   3   1
*/