Data Structures
Arrays [593]
Strings [393]
Hash [155]
Tree [121]
Matrix [111]
Stack [77]
Graph [74]
Queue [38]
Heap [37]
Map [26]

Algorithms
Sorting [116]
Numbers [47]
Greedy [43]
DFS [33]
sieve [31]

Languages
CPP [50]
Java [36]

Others
STL [125]
Misc [40]
set [10]