C Language applet Yang Hui's Triangle sample code

Enter the number of lines to display the Yang Hui's triangle, will print out the pyramid-type Yang Hui's triangle, but too many lines, the effect is not very good, you can adjust the format control Copy code code as follows:

#include <stdio.h>
#include <stdlib.h>
int main ()
{
 int i,j,k;
 int Li Ne
 int *prev, *next;
 printf ("Enter the number of rows to view the Yang Hui's triangle (greater than 2):");
 scanf ("%d", &line);
 if (Line < 2)
 {
  printf ("Number of rows is less than 2,goodbye!n");
  exit (1);
 
 for (i=1 i<=line; i++)    //The first two lines of printing
  printf ("  ");
 printf ("%6dn", 1);
 for (i=1 i<=line-1; i++)
  printf ("  ");
 printf ("%6d%6dn", 1, 1);
 prev = malloc (2*sizeof (int));
 prev[0] = 1;
 prev[1] = 1;
 for (i=3 i<=line; i++)    //print from the third line
 {
  next = malloc (i*sizeof ( int));
  next[0] = 1;
  next[i-1] = 1;
  for (j=line j>=i; j--)     //outer Space
  {
    printf ("  ");
&nbsP;&NBSP}
  printf ("%6d", 1);
  for (k=2; k<i; k++)     //number
  {
   next[k-1] = prev[k-2] + prev[k-1];
   printf ("%6d", next[k-1) ;
  }
    }
  printf ("%6dn", 1);
  free (prev);
  prev = next;
 }
 free (next);
 return 0;
}