How is this array taking inputs beyond it's size ?

Question

The array is taking input for the space more than it's size and the elements can also be retrieved , how ?
https://code.sololearn.com/c33KKZHcSi4M/?ref=app

Answer 1

https://www.sololearn.com/Discuss/884049/?ref=app
hope it helps

Answer 2

Saurabh Tiwari Thanks