What is goes wrong in this problem?

Question

I can't get the proper output while running this code.
https://code.sololearn.com/cuuw8bid9tvv/?ref=app

Answer 1

Please use appropriate and relevant words in thread tags ☝

Answer 2

yeah Avinesh is right. If you declare an array of size n then index goes from 0 to n-1

Answer 3

Your line 7 should be like this-
scanf("%d %d",&a[0],&a[1]);

You have int a[2] so there are only two elements, you cannot take 3 input values. Also at line 9 make i<2.