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  1. #include <stdio.h>
  2. int fact(int n)
  3. {
  4. 	int fact=1,i;
  5. 	for(i=1;i<=n;i++)
  6. 		fact=fact*i;
  7. 	return fact;
  8. }
  9.  
  10. int comb(int n,int r)
  11. {
  12. 	return fact(n)/(fact(n-r)*fact(r));
  13. }
  14.  
  15. int main(void) 
  16. {
  17. 	int i,j,n;
  18. 	printf("Enter n: \n");
  19. 	scanf("%d",&n);
  20. 	for(i=1;i<=n;i++)
  21. 	{
  22. 		int flag=1;
  23. 		int r=0;
  24. 		for(j=1;j<=2*n-1;j++)
  25. 		{
  26. 			if(j>=n+1-i && j<=n-1+i && flag)
  27. 			{
  28. 				printf("%d  ",comb(i-1,r));
  29. 				flag=0;
  30. 				r++;
  31. 			}
  32. 			else
  33. 			{
  34. 				printf("   ");
  35. 				flag=1;
  36. 			}
  37. 		}
  38. 		printf("\n");
  39. 	}
  40. 	return 0;
  41. }
  42.  
Success #stdin #stdout 0s 5284KB
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stdin
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stdout
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Enter n: 
                     1                       
                  1     1                    
               1     2     1                 
            1     3     3     1              
         1     4     6     4     1           
      1     5     10     10     5     1        
   1     6     15     20     15     6     1     
1     7     21     35     35     21     7     1
https://ideone.com/pl0yys
pascal triangle
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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