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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Exactly the same issue I was struggling with.
in C:
char* replaceNth(const char* text, int n, char oldValue, char newValue)
Where does the char * returned point to?
You can not change the const char *. Of course you can. it is 'C' , but not favorable.
I can allocate memory, but who will delete it??
What is the execution time of the routine? It got to be big (in computing time)