[c++] Why the following code is working ?

Question

why the code is working fine ?
goto: https://code.sololearn.com/cA9a25a96A09

Answer 1

https://stackoverflow.com/questions/23843760/how-is-char-array-an-oversize-when-filled-by-cin-geta-size

Answer 2

Your program is showing an undefined behaviour.
C++ doesn't specify what to do when a program tries to access values outside the limit of arrays, so the behaviour of the program can't be determined there.

Answer 3

5 elements of 5 bytes each 23 is just 1 element out of 5 The one-dimensional array can hold 5 elements.😎