Persistent Data Structures
Difference between en2 and en3, changed 61 character(s)
Is there any good tutorials on persistent data structures? ↵
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I've seen many solutions for [this](http://mirror.codeforces.com/contest/707/problem/D) problem, some uses bitwise trick and some used graphs and dfs which i don't really get how can it be applied to such a problem.↵
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Would any of you mind explaining his approach?↵
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Many Thanks .

History

 
 
 
 
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  Rev. Lang. By When Δ Comment
en3 English WalidMasri 2016-08-22 19:47:53 61
en2 English WalidMasri 2016-08-22 10:28:02 2 Tiny change: 't be applird to such ' -> 't be applied to such '
en1 English WalidMasri 2016-08-22 00:33:43 306 Initial revision (published)