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Data Structures
Arrays [654]
Strings [394]
Tree [184]
Hash [146]
Matrix [111]
Graph [103]
Stack [76]
Queue [35]
Heap [32]
Map [31]
Trie [20]

Algorithms
Sorting [150]
Bit Magic [127]
Greedy [81]
DFS [50]
Numbers [47]
BFS [37]
sieve [32]

Languages
CPP [56]
Java [47]

Others
STL [59]
Misc [40]
set [12]
subset [6]
LCS [1]