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Pascal triangle C program

Pascal triangle C program: C program to print Pascal triangle which you might have studied while studying Binomial Theorem in Mathematics. A user will enter how many numbers of rows to print. It's four rows are:

   1
  1 1
 1 2 1
1 3 3 1

Pascal triangle in C

#include <stdio.h>
 
long factorial(int);
 
int main()
{
   int i, n, c;
 
   printf("Enter the number of rows you wish to see in pascal triangle\n");
   scanf("%d",&n);
 
   for (i = 0; i < n; i++)
   {
      for (c = 0; c <= (n - i - 2); c++)
         printf(" ");
 
      for (c = 0 ; c <= i; c++)
         printf("%ld ",factorial(i)/(factorial(c)*factorial(i-c)));
 
      printf("\n");
   }
 
   return 0;
}
 
long factorial(int n)
{
   int c;
   long result = 1;
 
   for (c = 1; c <= n; c++)
         result = result*c;
 
   return result;
}

Download Pascal triangle program.

Pascal triangle C program output:
Pascal triangle C program output

For more patterns or shapes on numbers and characters see codes on following pages:
Patterns programs
Floyd triangle