LintCode 423 · Valid Parentheses.java

LintCode 442 · Implement Trie (Prefix Tree).java

LintCode 1301 · Game of Life.java

LintCode 1704 · Range Sum of BST.java

LintCode 912 · Best Meeting Point.java

LintCode 1283 · Reverse String.java

LintCode 1794 · Count Duplicates.java

LintCode 38 · Search a 2D Matrix II.java

LintCode 683 · Word Break III.java

LintCode 927 · Reverse Words in a String II.java

LintCode 1186 · Encode and Decode TinyURL.java

LintCode 165 · Merge Two Sorted Lists.java

LintCode 167 · Add Two Numbers.java

LintCode 1046 · Prime Number of Set Bits in Binary Representation.java

Algoexpert Run-Length Encoding.java

Algoexpert Caesar Cipher Encryptor.java

Algoexpert Palindrome Check.java

LintCode 1449 · Loud and Rich.java

LintCode 1652 · Interval XOR II.java

LintCode 797 · Reach a Number.java

LintCode 242 · Convert Binary Tree to Linked Lists by Depth.java

LintCode 69 · Binary Tree Level Order Traversal.java

LintCode 1691 · Best Time to Buy and Sell Stock V.java

LintCode 363 · Trapping Rain Water.java

LintCode 1479 · Can Reach The Endpoint.java

LintCode 1678 · Train compartment problem.java

LintCode 1673 · Save Money.java

LintCode 1883 · Top K Frequently Mentioned Keywords.java

LintCode 40 · Implement Queue by Two Stacks.java

LintCode 229 · Stack Sorting.java

LintCode 608 · Two Sum II - Input array is sorted.java

LintCode 1676 · Skip Stones.java

LintCode 1671 · play game.java

LintCode 61 · Search for a Range.java

LintCode 62 · Search in Rotated Sorted Array.java

LintCode 461 · Kth Smallest Numbers in Unsorted Array.java

LintCode 5 · Kth Largest Element.java

LintCode 143 · Sort Colors II.java

LintCode 751 · John's business.java

LeetCode 760 · Binary Tree Right Side View.java

LintCode 1563 · Shortest path to the destination.java

LintCode 1360 · Symmetric Tree.java

Binary Search:
note that: "Check the left.left equal to the right.right."

LintCode 437 · Copy Books.java

Binary Search:
note that: "This one is tricky."

LintCode 127 · Topological Sorting.java

Topological Sorting:
note that: "BFS with indegree."