Some algorithmic question and their solution.

• Week one : Dynamic programming
  • Knapsack problem
• Week two : Search.
  • Depth-First-Search (DFS)
  • Breadth-First-Search（BFS）
  • A Star(A*)
• Week three : Data structure.
  • Graph
  • The Four-Color Theorem
  • Segment Tree
  • Trie
  • Union–find data structure
• Week four : Math
  • Miller–Rabin primality test
  • Nim game
  • Sprague–Grundy theorem
  • Lexicographical order
• Week five : Project Euler
  • BigInteger
• Week six : Summary
  • Cantor expansion
  • Manacher