Algorithm note, 算法笔记
001-fib, 斐波那契数列: _001_fib
002-coinChange, 凑零钱问题: _002_coinChange
003-permute, 全排列: _003_permute
004-solveNQueuens, N皇后: _004_solveNQueuens
005-minDepth, 二叉树最小高度: _005_minDepth
006-openLock, 打开密码锁: _006_openLock
007-binarySearch, 二分查找: _007_binarySearch
008-minWindow, 最小覆盖子串: _008_minWindow
009-permutationInString, 字符串排列: _009_permutationInString
010-findAllAnagrams, 字母异位词: _010_findAllAnagrams
011-lengthOfLongestSubstring, 最长无重复子串: _011_lengthOfLongestSubstring
012-buyAndSellStock1, 股票买卖, 只买卖一次: _012_buyAndSellStock1
013-buyAndSellStock2, 股票买卖, 多次买卖: _013_buyAndSellStock2
014-rob, 打家劫舍: _014_rob
015-rob2, 打家劫舍: _015_rob2
016-removeCoveredIntervals, 删除被覆盖的区间: _016_removeCoveredIntervals
017-merge, 区间合并: _017_merge
018-intervalIntersection, 区间交集: _018_intervalIntersection
019-nSum, nSum: _019_nSum
020-nSum, invertTree: _20_invertTree
021-canPartition, 子集背包问题: _021_canPartition
022-minDistance, 编辑距离: _022_minDistance