how can I free all the memory used by a trie ?!
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how can I free all the memory used by a trie ?!
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memset(t, 0, sizeof t);
How you implements a trie?
Well, it certainly depends on the implementation. If your trie is something like this:
Then you don't need to free anything. Though Root.M.clear() does the thing. On the other hand, if it looks like this:
Always remember to implement a destructor if you don't want to have memory leaks.
And lastly, if you used indexes instead of pointers, feel free to use a memset(trie, 0, sizeof(trie)), but bear in mind this won't free the memory but zero its content. (You can now safely overwrite it), :)