diff --git a/README.md b/README.md
index ec3433d..3d9741d 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 </div>
 
 ## [数组(及其相关结构)](Array/)
-* [可容纳最多水的一组容器.py](Array/ContainerWithMostWater.py)
+* - [可容纳最多水的一组容器.py](Array/ContainerWithMostWater.py)
 * - [糖果公平交换.py](Array/FairCandySwap.py)
 * - [已排序的数组中找到第一和最后一个元素.py](Array/FindFirstAndLastPositionOfElementInSortedArray.py)
 * - [旋转过的排序数组中找到最小的元素.py](Array/FindMinimumInRotatedSortedArray.py)
@@ -53,6 +53,47 @@
 * - [最频繁的K个元素.py](Array/TopKFrequentElements.py)
 * - [两数相加II数组已排序.py](Array/TwoSumIIAlreadySorted.py)
 * - [两数相加.py](Array/two_sum.py)
+* - [多重三数相加.py](Array/3SumWithMultiplicity.py)
+* - [最佳买卖时机I_II.py](Array/BestTimeToBuyAndSellStockI_II.py)
+* - [二进制子数组和.py](Array/BinarySubarraysWithSum.py)
+* - [统计小于自身且在自身之后的数.py](Array/CountOfSmallerNumbersAfterSelf.py)
+* - [寻找极值.py](Array/FindPeakElement.py)
+* - [FizzBuzz.py](Array/FizzBuzz.py)
+* - [加油站.py](Array/GasStation.py)
+* - [本地和全局的倒置.py](Array/GlobalAndLocalInversions.py)
+* - [组团的变位词.py](Array/GroupAnagrams.py)
+* - [两数组的重叠部分.py](Array/IntersectionOfTwoArrays.py)
+* - [两数组重叠部分II.py](Array/IntersectionOfTwoArraysII.py)
+* - [跳跃游戏.py](Array/JumpGame.py)
+* - [跳跃游戏II.py](Array/JumpGameII.py)
+* - [距离最近的人的可走过的最远距离.py](Array/MaximizeDistanceToClosestPerson.py)
+* - [循环子数组的最大和.py](Array/MaximumSumCircularSubarray.py)
+* - [最小下落路径和.py](Array/MinimumFallingPathSum.py)
+* - [最小路径和.py](Array/MinimumPathSum.py)
+* - [单双链表.py](Array/OddEvenLinkedList.py)
+* - [解体大数组.py](Array/PartitionArrayIntoDisjointIntervals.py)
+* - [解体列表.py](Array/PartitionList.py)
+* - [Pascal 三角I_II.py](Array/Pascal's TriangleI_II.py)
+* - [+1.py](Array/PlusOne.py)
+* - [从已排序的数组中删除重复数据.py](Array/RemoveDuplicatesFromSortedArray.py)
+* - [从已排序的数组中删除重复数据II.py](Array/RemoveDuplicatesFromSortedArrayII.py)
+* - [从已排序的列表中删除重复数据.py](Array/RemoveDuplicatesFromSortedList.py)
+* - [从已排序的列表中删除重复数据II.py](Array/RemoveDuplicatesFromSortedListII.py)
+* - [删除链表中的元素.py](Array/RemoveLinkedListElements.py)
+* - [旋转列表.py](Array/RotateList.py)
+* - [在矩阵中捣蛋.py](Array/SetMatrixZeroes.py)
+* - [洗牌.py](Array/ShuffleAnArray.py)
+* - [最大的滑动窗口.py](Array/SlidingWindowMaximum.py)
+* - [根据"对er"排序数组II.py](Array/SortArrayByParityII.py)
+* - [颜色颜色.py](Array/SortColors.py)
+* - [螺旋矩阵II.py](Array/SpiralMatrixII.py)
+* - [等于K的子数组.py](Array/SubarraySumEqualsK.py)
+* - [三角.py](Array/Triangle.py)
+* - [单词子集.py](Array/WordSubsets.py)
+
+## [回溯](Backtracking/)
+* - [生成括号.py](Backtracking/GenerateParentheses.py)
+* - [子集.py](Backtracking/subsets.py)
 
 ## [广度优先搜索](BFS/)
 * - [树中最靠近左下的节点的值.py](BFS/FindBottomLeftTreeValue.py)
@@ -60,14 +101,17 @@
 * - [二叉树层级遍历II.py](BFS/BinaryTreeLevelOrderTraversalII.py)
 * - [二叉树层级 Zigzag 遍历.py](BFS/BinaryTreeZigzagLevelOrderTraversal.py)
 * - [二叉树的最大深度.py](BFS/MaximumDepthOfBinaryTree.py)
+* - [单词阶梯.py](BFS/WordLadder.py)
 
 ## [设计类](Design/)
 * - [LRU 缓存设计.py](Design/LRUCache.py)
 * - [RLE 迭代器.py](Design/RLEIterator.py)
+* - [O(1)复杂度的插入删除和取随机容器.py](Design/InsertDeleteGetRandomO(1).py)
 
 ## [深度优先搜索](DFS/)
 * - [路径和.py](DFS/PathSum.py)
 * - [词搜索.py](DFS/WordSearch.py)
+* - [词搜索II.py](DFS/WordSearchII.py)
 
 ## [动态规划](DP/)
 * - [交错的字符串.py](DP/InterleavingString.py)
@@ -83,21 +127,33 @@
 * - [挑卡片.py](DP/PickCards.py)
 * - [唯一路径.py](DP/UniquePath.py)
 * - [唯一路径II.py](DP/UniquePathII.py)
+* - [爬楼.py](DP/ClimbingStairs.py)
+* - [解码方式.py](DP/DecodeWays.py)
+* - [在某字符串中找到所有的变位词.py](DP/FindAllAnagramsInAString.py)
+* - [转换字符串到单调递增.py](DP/FlipStringToMonotoneIncreasing.py)
+* - [小于K的子数组积.py](DP/SubarrayProductLessThanK.py)
+* - [单词中断处.py](DP/WordBreak.py)
 
 ## [堆](Heap/)
 * - [排序矩阵中第k小个元素.py](Heap/KthSmallestElementInASortedMatrix.py)
 * - [合并K个已排序过的链表.py](Heap/MergeKSortedLists.py)
+* - [从数据流中找中位数.py](Heap/FindMedianFromDataStream.py)
 
 ## [排序](Sorted/)
 * - [选择,插入,快排,归并](Sorted/sotred.py)
+* - [排序列表.py](Sorted/SortList.py)
+* - [奇怪的排序II.py](Sorted/WiggleSortII.py)
 
 ## [纯数字问题](Number/)
 * - [两数相除.py](Number/DivideTwoIntegers.py)
+* - [Sqrt(x).py](Number/Sqrt(x).py)
 
 ## [栈](Stack/)
 * - [可取最小值的栈.py](Stack/GetMinStack.py)
 * - [使用栈模拟队列.py](Stack/ImplementQueueUsingStack.py)
 * - [使用递归翻转栈.py](Stack/ReverseAStackByRecursive.py)
+* - [直方图中最大的矩形.py](Stack/LargestRectangleInHistogram.py)
+* - [收集雨水.py](Stack/TrappingRainWater.py)
 
 ## [字符串](String/)
 * - [找到可被模板替换的字符串.py](String/FindAndReplacePattern.py)
@@ -121,6 +177,16 @@
 * - [翻转字符串.py](String/ReverseString.py)
 * - [转换至小写.py](String/ToLowerCase.py)
 * - [词模板.py](String/WordPattern.py)
+* - [字符串中最先出现的唯一字符.py](String/FirstUniqueCharacterInAString.py)
+* - [长印刷名字.py](String/LongPressedName.py)
+* - [使括号有效的最小添加数.py](String/MinimumAddToMakeParenthesesValid.py)
+* - [字符串中的全排列.py](String/PermutationInString.py)
+* - [转换单词.py](String/ShiftingLetters.py)
+* - [简化路径.py](String/SimplifyPath.py)
+* - [根据频率排序字符.py](String/SortCharactersByFrequency.py)
+* - [独一无二的邮箱地址.py](String/UniqueEmailAddresses.py)
+* - [有效变位词.py](String/ValidAnagram.py)
+* - [有效回文字符串.py](String/ValidPalindrome.py)
 
 ## [树](Tree/)
 * - [根据前序和后序的结果生成二叉树.py](Tree/ConstructBinaryTreeFromPreorderAndPostorderTraversal.py)
@@ -134,4 +200,14 @@
 * - [“结”构与解构.py](Tree/serializeAndDeserialize.py)
 * - [根到叶的和.py](Tree/SumRootToLeafNumbers.py)
 * - [字典树.py](Tree/Trie.py)
-
+* - [所有可能的满二叉树.py](Tree/AllPossibleFullBinaryTree.py)
+* - [右边视角的二叉树.py](Tree/BinaryTreeRightSideView.py)
+* - [完整二叉树插入.py](Tree/CompleteBinaryTreeInserter.py)
+* - [根据中序和后序遍历结果中构建二叉树.py](Tree/ConstructBinaryTreeFromInorderAndPostorderTraversal.py)
+* - [根据前序和中序遍历结果中构建二叉树.py](Tree/ConstructBinaryTreeFromPreorderAndInorderTraversal.py)
+* - [一只二叉搜索树中第k小个数.py](Tree/KthSmallestElementInABST.py)
+* - [二叉搜索树中最小公共祖先.py](Tree/LowestCommonAncestorOfABinarySearchTree.py)
+* - [二叉树中最小公共祖先.py](Tree/LowestCommonAncestorOfABinaryTree.py)
+* - [为每个节点指定下一个右边指向.py](Tree/PopulatingNextRightPointersInEachNode.py)
+* - [为每个节点指定下一个右边指向II.py](Tree/PopulatingNextRightPointersInEachNodeII.py)
+* - [“结”构与解构二叉树.py](Tree/SerializeAndDeserializeBinaryTree.py)