C program to display the following output

Question

1
2 3
4 5 6
7 8 9
10 11 12 13
* * *
* *
*

Answer 1

Hey there Sanket,
Please add your attempt so that the community can help you more easily. Thanks :)

https://www.sololearn.com/blog/38/8-simple-rules-to-get-help-from-the-community

Answer 2

Ok