Print pascal triangle using C language

In mathematics, Pascal's triangle is a triangular array of the binomial coefficients. It is named after the French mathematician Blaise Pascal.

Pascal's Triangle

 #include <stdio.h>  
 long fact(int);  
 void main()  
 {  
   int i, no, c;  
   printf("Enter Number of Rows : ");  
   scanf("%d", &no);  
   for(i = 0; i < no; i++)  
   {  
     for(c = 0; c <= (no-i-2); c++)  
       printf(" ");  
     for(c = 0; c <= i; c++)  
       printf("%ld ", fact(i) / ( fact(c) * fact(i-c) ) );  
     printf("\n");  
   }  
 }  
 long fact(int no)  
 {  
   int c;  
   long result = 1;  
   for(c = 1; c <= no; c++)  
     result = result * c;  
   return result;  
 }