Data Structures
Arrays [603]
Strings [404]
Hash [159]
Tree [122]
Matrix [112]
Graph [85]
Stack [78]
Queue [39]
Heap [36]
Map [26]

Algorithms
Bit Magic [120]
Numbers [48]
Greedy [44]
DFS [35]
sieve [31]

Languages
CPP [50]
Java [36]

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