I just coded number pyramid:

Code:
#include <stdio.h>

int main (int argc, const char * argv[]) {
 int i, j, k, l;
 int number = 0;
 l = 1;

	for (i = 0; i < 10; i++) {
	
		for (j = 10; j > i; j--) 
			printf(" ");
			
		for (k = 0; k < l; k++) 
			printf("%d", number);
	
	
	printf("\n");
	l += 2;
	number += 1;
	
	}

    return 0;
}
Code works great and the outputs number pyramid(Looks like the forum doesn't show it right, but I'm sure you know what pyramid is ):
0
1 1 1
2 2 2 2 2
3 3 3 3 3 3 3
4 4 4 4 4 4 4 4 4
5 5 5 5 5 5 5 5 5 5 5
6 6 6 6 6 6 6 6 6 6 6 6 6
7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9

But I want the output be like this (Looks like the forum doesn't show it right, but I'm sure you know what pyramid is ):

1
2 3 2
3 4 5 4 3
4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5
6 7 8 9 0 1 0 9 8 7 6
7 8 9 0 1 2 3 2 1 0 9 8 7
8 9 0 1 2 3 4 5 4 3 2 1 0 9 8
9 0 1 2 3 4 5 6 7 6 5 4 3 2 1 0 9
0 1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 0

I just cant figure it out how to do it. Any ideas?