2018

String Pattern

Algorithms
string

DP - Matrix

Algorithms
dp

DFS - Matrix

Algorithms
dfs

Trie

Algorithms
tree

DP - Game

Algorithms
dfs, dp

Data Stream

Algorithms
heap, queue, topic

Math

Boyer-Moore Voting Algorithm

Algorithms
topic

Cache

Design
hash table, linked list, topic

K Sum

Algorithms
sort

Directed Graph

Algorithms
graph

DP - Cut Sequence

Algorithms
dp