How to print the following in c language?

patterns.c

1. How to print the following in c language?
n=5
o/p
0
1 0
2 1 0
3 2 1 0
4 3 2 1 0

2. How to print the following in c language?
n=5
2
3 4
4 5 6
5 6 7 8
6 7 8 9 10

#include<stdio.h>

int main()
{
 int j=0,i =0;

  for (i=0;i<5;i++)
   {
      for(j=i;j>=0;j--)
         printf("%d ",j);
    printf("\n");
   }

  for (i=0;i<5;i++)
   {
      for(j=0;j<=i;j++)
         printf("%d ",i+j+2);
    printf("\n");
   }
}

Thanks kiranbiradar