Why this Code is not working on Sololearn Code Editor ?

Question

Code Coach:
https://www.sololearn.com/coach/64?ref=app
https://www.sololearn.com/post/205017/?ref=app
https://code.sololearn.com/cFDgi4TFrkDT/?ref=app

Answer 1

My opinion

https://code.sololearn.com/cNiDrjOSeDfU/?ref=app

Answer 2

Thanks to sankot ~ swim ~ for Answers.
My Code is now working.

Answer 3

But ~ swim ~ that code shows Error.
why?

Answer 4

~ swim ~ can you explain in detail please?

Answer 5

I think problem can be in s, I will change it type from char * to string

Answer 6

Also here cout<<*num[*(s+i)-'0'];

Answer 7

And, you should delete one * to print whole string

cout<<num[*(str+i)-'0'];

Answer 8

You declarate str but use s in getline