题库:LeetCode 已刷:357
| 题号 | Title | java | 类别 |
|---|---|---|---|
| 1 | two sum | 答案链接 | 哈希 |
| 2 | add two numbers | 答案链接 | 链表 |
| 3 | longest substring without repeating characters | 答案链接 | 滑动窗口 |
| 4 | median of two sorted arrays | 答案链接 | 二分 |
| 5 | longest palindromic substring | 答案链接 | KMP |
| 6 | zigzag conversion | 答案链接 | 排版题 |
| 7 | reverse integer | 答案链接 | 字符串 |
| 8 | string to integer atoi | 答案链接 | 有限状态机 |
| 9 | palindrome number | 答案链接 | 字符串 |
| 11 | container with most water | 答案链接 | 双指针 |
| 12 | integer to roman | 答案链接 | 字符串 |
| 13 | roman to integer | 答案链接 | 字符串 |
| 14 | longest common prefix | 答案链接 | 字符串 |
| 15 | 3sum | 答案链接 | 双指针 |
| 16 | 3sum closest | 答案链接 | 双指针 |
| 17 | letter combinations of a phone number | 答案链接 | 递归 |
| 19 | remove nth node from end of list | 答案链接 | 双指针 |
| 20 | valid parentheses | 答案链接 | 栈 |
| 21 | merge two sorted lists | 答案链接 | 链表 |
| 22 | generate parentheses | 答案链接 | 回溯剪枝 |
| 23 | merge k sorted lists | 答案链接 | 堆 |
| 24 | swap nodes in pairs | 答案链接 | 链表 |
| 25 | reverse nodes in k group | 答案链接 | 链表 |
| 26 | remove duplicates from sorted array | 答案链接 | 重复元素 |
| 27 | remove element | 答案链接 | 重复元素 |
| 28 | implement strstr | 答案链接 | 字符串 |
| 29 | divide two integers | 答案链接 | 二分 |
| 31 | next permutation | 答案链接 | 排列组合 |
| 33 | search in rotated sorted array | 答案链接 | 二分 |
| 34 | find first and last position of element in sorted array | 答案链接 | 二分 |
| 35 | search insert position | 答案链接 | 二分 |
| 36 | valid sudoku | 答案链接 | 哈希 |
| 37 | sudoku solver | 答案链接 | 回溯剪枝 |
| 38 | count and say | 答案链接 | 哈希 |
| 39 | combination sum | 答案链接 | 排列组合 |
| 40 | combination sum ii | 答案链接 | 排列组合 |
| 41 | first missing positive | 答案链接 | 有限范围数组 |
| 42 | trapping rain water | 答案链接 | 动态规划 |
| 43 | multiply strings | 答案链接 | 大数 |
| 45 | jump game ii | 答案链接 | 动态规划 |
| 46 | permutations | 答案链接 | 排列组合 |
| 47 | permutations ii | 答案链接 | 排列组合 |
| 48 | rotate image | 答案链接 | 图形学 |
| 49 | group anagrams | 答案链接 | 哈希 |
| 50 | powx n | 答案链接 | 二分 |
| 53 | maximum subarray | 答案链接 | 动态规划 |
| 54 | spiral matrix | 答案链接 | 排版题 |
| 55 | jump game | 答案链接 | 动态规划 |
| 56 | merge intervals | 答案链接 | 区间问题 |
| 57 | insert interval | 答案链接 | 图形学 |
| 58 | length of last word | 答案链接 | 字符串 |
| 59 | spiral matrix ii | 答案链接 | 排版题 |
| 60 | permutation sequence | 答案链接 | 排列组合 |
| 61 | rotate list | 答案链接 | 链表 |
| 62 | unique paths | 答案链接 | 动态规划 |
| 63 | unique paths ii | 答案链接 | 动态规划 |
| 64 | minimum path sum | 答案链接 | 动态规划 |
| 66 | plus one | 答案链接 | 大数 |
| 67 | add binary | 答案链接 | 大数 |
| 69 | sqrtx | 答案链接 | 二分 |
| 70 | climbing stairs | 答案链接 | 动态规划 |
| 71 | simplify path | 答案链接 | 栈 |
| 72 | edit distance | 答案链接 | 字符串距离 |
| 73 | set matrix zeroes | 答案链接 | 图形学 |
| 74 | search a 2d matrix | 答案链接 | 二分 |
| 75 | sort colors | 答案链接 | 双指针 |
| 76 | minimum window substring | 答案链接 | 滑动窗口 |
| 77 | combinations | 答案链接 | 排列组合 |
| 78 | subsets | 答案链接 | 排列组合 |
| 79 | word search | 答案链接 | 回溯剪枝 |
| 80 | remove duplicates from sorted array ii | 答案链接 | 重复元素 |
| 81 | search in rotated sorted array ii | 答案链接 | 二分 |
| 82 | remove duplicates from sorted list ii | 答案链接 | 链表 |
| 83 | remove duplicates from sorted list | 答案链接 | 链表 |
| 84 | largest rectangle in histogram | 答案链接 | 栈 |
| 85 | maximal rectangle | 答案链接 | 图形学 |
| 85 | maximal rectangle | 答案链接 | 栈 |
| 86 | partition list | 答案链接 | 链表 |
| 88 | merge sorted array | 答案链接 | 排序 |
| 89 | gray code | 答案链接 | 位运算 |
| 90 | subsets ii | 答案链接 | 排列组合 |
| 91 | decode ways | 答案链接 | 动态规划 |
| 92 | reverse linked list ii | 答案链接 | 链表 |
| 93 | restore ip addresses | 答案链接 | 递归 |
| 95 | unique binary search trees ii | 答案链接 | 树递归 |
| 98 | validate binary search tree | 答案链接 | 树递归 |
| 100 | same tree | 答案链接 | 树递归 |
| 101 | symmetric tree | 答案链接 | 树递归 |
| 102 | binary tree level order traversal | 答案链接 | 树递归 |
| 103 | binary tree zigzag level order traversal | 答案链接 | 树递归 |
| 104 | maximum depth of binary tree | 答案链接 | 树递归 |
| 105 | construct binary tree from preorder and inorder traversal | 答案链接 | 树递归 |
| 106 | construct binary tree from inorder and postorder traversal | 答案链接 | 树递归 |
| 107 | binary tree level order traversal ii | 答案链接 | 树递归 |
| 108 | convert sorted array to binary search tree | 答案链接 | 树递归 |
| 109 | convert sorted list to binary search tree | 答案链接 | 树递归 |
| 110 | balanced binary tree | 答案链接 | 树递归 |
| 111 | minimum depth of binary tree | 答案链接 | 树递归 |
| 112 | path sum | 答案链接 | 树递归 |
| 113 | path sum ii | 答案链接 | 树递归 |
| 114 | flatten binary tree to linked list | 答案链接 | 树递归 |
| 116 | populating next right pointers in each node | 答案链接 | 树递归 |
| 117 | populating next right pointers in each node ii | 答案链接 | 树递归 |
| 118 | pascals triangle | 答案链接 | 排版题 |
| 119 | pascals triangle ii | 答案链接 | 动态规划 |
| 120 | triangle | 答案链接 | 动态规划 |
| 121 | best time to buy and sell stock | 答案链接 | 动态规划 |
| 122 | best time to buy and sell stock ii | 答案链接 | 动态规划 |
| 123 | best time to buy and sell stock iii | 答案链接 | 动态规划 |
| 124 | binary tree maximum path sum | 答案链接 | 树递归 |
| 125 | valid palindrome | 答案链接 | 双指针 |
| 127 | valid palindrome | 答案链接 | 字符串 |
| 127 | word ladder | 答案链接 | 图论 |
| 128 | longest consecutive sequence | 答案链接 | 哈希 |
| 129 | sum root to leaf numbers | 答案链接 | 树递归 |
| 130 | surrounded regions | 答案链接 | 图形学 |
| 131 | palindrome partitioning | 答案链接 | 递归 |
| 133 | clone graph | 答案链接 | 图论 |
| 134 | gas station | 答案链接 | 贪心 |
| 136 | single number | 答案链接 | 重复元素 |
| 137 | single number ii | 答案链接 | 位运算 |
| 138 | copy list with random pointer | 答案链接 | 哈希 |
| 139 | word break | 答案链接 | 动态规划 |
| 141 | linked list cycle | 答案链接 | 双指针 |
| 142 | linked list cycle ii | 答案链接 | 双指针 |
| 145 | binary tree postorder traversal | 答案链接 | 树递归 |
| 146 | lru cache | 答案链接 | 链表 |
| 147 | insertion sort list | 答案链接 | 链表 |
| 148 | sort list | 答案链接 | 排序 |
| 150 | evaluate reverse polish notation | 答案链接 | 栈 |
| 153 | find minimum in rotated sorted array | 答案链接 | 二分 |
| 156 | binary tree upside down | 答案链接 | 树递归 |
| 157 | read n characters given read4 | 答案链接 | IO |
| 161 | one edit distance | 答案链接 | 字符串距离 |
| 162 | find peak element | 答案链接 | 二分 |
| 164 | maximum gap | 答案链接 | 桶思想 |
| 165 | compare version numbers | 答案链接 | 字符串 |
| 169 | majority element | 答案链接 | 重复元素 |
| 174 | dungeon game | 答案链接 | 动态规划 |
| 187 | repeated dna sequences | 答案链接 | 压缩编码 |
| 188 | best time to buy and sell stock iv | 答案链接 | 动态规划 |
| 189 | rotate array | 答案链接 | 数学结论 |
| 190 | reverse bits | 答案链接 | 字符串 |
| 191 | number of 1 bits | 答案链接 | 位运算 |
| 198 | house robber | 答案链接 | 动态规划 |
| 199 | binary tree right side view | 答案链接 | 树递归 |
| 200 | number of islands | 答案链接 | 图论 |
| 201 | bitwise and of numbers range | 答案链接 | 位运算 |
| 203 | remove linked list elements | 答案链接 | 链表 |
| 206 | reverse linked list | 答案链接 | 链表 |
| 207 | course schedule | 答案链接 | 图论 |
| 208 | implement trie prefix tree | 答案链接 | 前缀树 |
| 209 | minimum size subarray sum | 答案链接 | 双指针 |
| 210 | course schedule ii | 答案链接 | 图论 |
| 211 | add and search word data structure design | 答案链接 | 前缀树 |
| 213 | house robber ii | 答案链接 | 动态规划 |
| 214 | shortest palindrome | 答案链接 | KMP |
| 215 | kth largest element in an array | 答案链接 | 排序 |
| 216 | combination sum iii | 答案链接 | 排列组合 |
| 217 | contains duplicate | 答案链接 | 哈希 |
| 220 | contains duplicate iii | 答案链接 | 哈希 |
| 221 | maximal square | 答案链接 | 动态规划 |
| 222 | count complete tree nodes | 答案链接 | 树递归 |
| 229 | majority element ii | 答案链接 | 重复元素 |
| 230 | kth smallest element in a bst | 答案链接 | 树递归 |
| 231 | power of two | 答案链接 | 位运算 |
| 234 | palindrome linked list | 答案链接 | 链表 |
| 235 | lowest common ancestor of a binary search tree | 答案链接 | 树递归 |
| 236 | lowest common ancestor of a binary tree | 答案链接 | 树递归 |
| 237 | delete node in a linked list | 答案链接 | 链表 |
| 238 | product of array except self | 答案链接 | 动态规划 |
| 239 | sliding window maximum | 答案链接 | 滑动窗口 |
| 242 | valid anagram | 答案链接 | 哈希 |
| 243 | shortest word distance | 答案链接 | 哈希 |
| 244 | shortest word distance ii | 答案链接 | 哈希 |
| 252 | meeting rooms | 答案链接 | 区间问题 |
| 253 | meeting rooms ii | 答案链接 | 区间问题 |
| 257 | binary tree paths | 答案链接 | 树递归 |
| 264 | ugly number ii | 答案链接 | 排列组合 |
| 268 | missing number | 答案链接 | 有限范围数组 |
| 273 | integer to english words | 答案链接 | 字符串 |
| 278 | first bad version | 答案链接 | 二分 |
| 279 | perfect squares | 答案链接 | 动态规划 |
| 284 | peeking iterator | 答案链接 | 迭代器 |
| 287 | find the duplicate number | 答案链接 | 重复元素 |
| 289 | game of life | 答案链接 | 图形学 |
| 299 | bulls and cows | 答案链接 | 哈希 |
| 300 | longest increasing subsequence | 答案链接 | 子序列 |
| 307 | range sum query mutable | 答案链接 | 线段树 |
| 309 | best time to buy and sell stock with cooldown | 答案链接 | 动态规划 |
| 310 | minimum height trees | 答案链接 | 图论 |
| 318 | maximum product of word lengths | 答案链接 | 哈希 |
| 322 | coin change | 答案链接 | 背包问题 |
| 327 | count of range sum | 答案链接 | 线段树 |
| 328 | odd even linked list | 答案链接 | 链表 |
| 329 | longest increasing path in a matrix | 答案链接 | 动态规划 |
| 331 | verify preorder serialization of a binary tree | 答案链接 | 树递归 |
| 337 | house robber iii | 答案链接 | 动态规划 |
| 338 | counting bits | 答案链接 | 位运算 |
| 341 | flatten nested list iterator | 答案链接 | 迭代器 |
| 342 | power of four | 答案链接 | 位运算 |
| 343 | integer break | 答案链接 | 动态规划 |
| 345 | reverse vowels of a string | 答案链接 | 双指针 |
| 347 | top k frequent elements | 答案链接 | 堆 |
| 354 | russian doll envelopes | 答案链接 | 子序列 |
| 354 | russian doll envelopes | 答案链接 | 动态规划 |
| 357 | count numbers with unique digits | 答案链接 | 动态规划 |
| 365 | water and jug problem | 答案链接 | 回溯剪枝 |
| 368 | largest divisible subset | 答案链接 | 排列组合 |
| 371 | sum of two integers | 答案链接 | 位运算 |
| 373 | find k pairs with smallest sums | 答案链接 | 堆 |
| 374 | guess number higher or lower | 答案链接 | 二分 |
| 376 | wiggle subsequence | 答案链接 | 动态规划 |
| 377 | combination sum iv | 答案链接 | 排列组合 |
| 378 | kth smallest element in a sorted matrix | 答案链接 | 堆 |
| 382 | linked list random node | 答案链接 | 概率 |
| 383 | ransom note | 答案链接 | 字符串 |
| 384 | shuffle an array | 答案链接 | 概率 |
| 387 | first unique character in a string | 答案链接 | 哈希 |
| 392 | is subsequence | 答案链接 | 字符串 |
| 393 | utf 8 validation | 答案链接 | 位运算 |
| 394 | decode string | 答案链接 | 栈 |
| 397 | integer replacement | 答案链接 | 位运算 |
| 398 | random pick index | 答案链接 | 概率 |
| 400 | nth digit | 答案链接 | 数学结论 |
| 401 | binary watch | 答案链接 | 排列组合 |
| 405 | convert a number to hexadecimal | 答案链接 | 位运算 |
| 406 | queue reconstruction by height | 答案链接 | 贪心 |
| 413 | arithmetic slices | 答案链接 | 动态规划 |
| 415 | add strings | 答案链接 | 字符串 |
| 416 | partition equal subset sum | 答案链接 | 背包问题 |
| 419 | battleships in a board | 答案链接 | 动态规划 |
| 424 | longest repeating character replacement | 答案链接 | 滑动窗口 |
| 429 | n ary tree level order traversal | 答案链接 | 树递归 |
| 430 | flatten a multilevel doubly linked list | 答案链接 | 链表 |
| 434 | number of segments in a string | 答案链接 | 字符串 |
| 435 | non overlapping intervals | 答案链接 | 区间问题 |
| 437 | path sum iii | 答案链接 | 树递归 |
| 438 | find all anagrams in a string | 答案链接 | 滑动窗口 |
| 443 | string compression | 答案链接 | 压缩编码 |
| 445 | add two numbers ii | 答案链接 | 链表 |
| 448 | find all numbers disappeared in an array | 答案链接 | 有限范围数组 |
| 450 | delete node in a bst | 答案链接 | 树递归 |
| 451 | sort characters by frequency | 答案链接 | 哈希 |
| 452 | minimum number of arrows to burst balloons | 答案链接 | 区间问题 |
| 455 | assign cookies | 答案链接 | 双指针 |
| 456 | 132 pattern | 答案链接 | 栈 |
| 459 | repeated substring pattern | 答案链接 | KMP |
| 467 | unique substrings in wraparound string | 答案链接 | 动态规划 |
| 468 | validate ip address | 答案链接 | 字符串 |
| 470 | implement rand10 using rand7 | 答案链接 | 概率 |
| 474 | ones and zeroes | 答案链接 | 背包问题 |
| 477 | total hamming distance | 答案链接 | 位运算 |
| 478 | generate random point in a circle | 答案链接 | 概率 |
| 485 | max consecutive ones | 答案链接 | 动态规划 |
| 492 | construct the rectangle | 答案链接 | 数学结论 |
| 494 | target sum | 答案链接 | 回溯剪枝 |
| 496 | next greater element i | 答案链接 | 栈 |
| 498 | diagonal traverse | 答案链接 | 排版题 |
| 501 | find mode in binary search tree | 答案链接 | 树递归 |
| 503 | next greater element ii | 答案链接 | 栈 |
| 504 | base 7 | 答案链接 | 数学结论 |
| 506 | relative ranks | 答案链接 | 哈希 |
| 508 | most frequent subtree sum | 答案链接 | 树递归 |
| 509 | fibonacci number | 答案链接 | 动态规划 |
| 513 | find bottom left tree value | 答案链接 | 树递归 |
| 514 | freedom trail | 答案链接 | 动态规划 |
| 515 | find largest value in each tree row | 答案链接 | 树递归 |
| 516 | longest palindromic subsequence | 答案链接 | 动态规划 |
| 518 | coin change 2 | 答案链接 | 动态规划 |
| 523 | continuous subarray sum | 答案链接 | 哈希 |
| 524 | longest word in dictionary through deleting | 答案链接 | 字符串 |
| 525 | contiguous array | 答案链接 | 哈希 |
| 530 | minimum absolute difference in bst | 答案链接 | 树递归 |
| 538 | convert bst to greater tree | 答案链接 | 树递归 |
| 539 | minimum time difference | 答案链接 | 字符串 |
| 543 | diameter of binary tree | 答案链接 | 树递归 |
| 559 | maximum depth of n ary tree | 答案链接 | 树递归 |
| 560 | subarray sum equals k | 答案链接 | 子数组 |
| 563 | binary tree tilt | 答案链接 | 树递归 |
| 565 | array nesting | 答案链接 | 动态规划 |
| 567 | permutation in string | 答案链接 | 哈希 |
| 572 | subtree of another tree | 答案链接 | 树递归 |
| 576 | out of boundary paths | 答案链接 | 动态规划 |
| 583 | delete operation for two strings | 答案链接 | 动态规划 |
| 589 | n ary tree preorder traversal | 答案链接 | 树递归 |
| 590 | n ary tree postorder traversal | 答案链接 | 树递归 |
| 592 | fraction addition and subtraction | 答案链接 | 数学结论 |
| 606 | construct string from binary tree | 答案链接 | 树递归 |
| 621 | task scheduler | 答案链接 | 桶思想 |
| 623 | add one row to tree | 答案链接 | 树递归 |
| 637 | average of levels in binary tree | 答案链接 | 树递归 |
| 638 | shopping offers | 答案链接 | 背包问题 |
| 640 | solve the equation | 答案链接 | 字符串 |
| 646 | maximum length of pair chain | 答案链接 | 贪心 |
| 647 | palindromic substrings | 答案链接 | 动态规划 |
| 648 | replace words | 答案链接 | 前缀树 |
| 653 | two sum iv input is a bst | 答案链接 | 树递归 |
| 662 | maximum width of binary tree | 答案链接 | 树递归 |
| 669 | trim a binary search tree | 答案链接 | 树递归 |
| 671 | second minimum node in a binary tree | 答案链接 | 树递归 |
| 673 | number of longest increasing subsequence | 答案链接 | 子序列 |
| 677 | map sum pairs | 答案链接 | 前缀树 |
| 680 | valid palindrome ii | 答案链接 | 字符串 |
| 687 | longest univalue path | 答案链接 | 树递归 |
| 700 | search in a binary search tree | 答案链接 | 树递归 |
| 701 | insert into a binary search tree | 答案链接 | 树递归 |
| 703 | kth largest element in a stream | 答案链接 | 堆 |
| 704 | binary search | 答案链接 | 二分 |
| 712 | minimum ascii delete sum for two strings | 答案链接 | 动态规划 |
| 713 | subarray product less than k | 答案链接 | 子数组 |
| 714 | best time to buy and sell stock with transaction fee | 答案链接 | 动态规划 |
| 718 | maximum length of repeated subarray | 答案链接 | 动态规划 |
| 725 | split linked list in parts | 答案链接 | 链表 |
| 729 | my calendar i | 答案链接 | 二分 |
| 739 | daily temperatures | 答案链接 | 栈 |
| 746 | min cost climbing stairs | 答案链接 | 动态规划 |
| 748 | shortest completing word | 答案链接 | 哈希 |
| 765 | couples holding hands | 答案链接 | 有限范围数组 |
| 767 | reorganize string | 答案链接 | 排列组合 |
| 783 | minimum distance between bst nodes | 答案链接 | 树递归 |
| 784 | letter case permutation | 答案链接 | 排列组合 |
| 785 | is graph bipartite | 答案链接 | 二分图 |
| 792 | number of matching subsequences | 答案链接 | 子序列 |
| 795 | number of subarrays with bounded maximum | 答案链接 | 子数组 |
| 796 | rotate string | 答案链接 | KMP |
| 811 | subdomain visit count | 答案链接 | 哈希 |
| 842 | split array into fibonacci sequence | 答案链接 | 回溯剪枝 |
| 844 | backspace string compare | 答案链接 | 栈 |
| 853 | car fleet | 答案链接 | 数学结论 |
| 856 | score of parentheses | 答案链接 | 栈 |
| 875 | koko eating bananas | 答案链接 | 二分 |
| 887 | super egg drop | 答案链接 | 动态规划 |
| 894 | all possible full binary trees | 答案链接 | 树递归 |
| 901 | online stock span | 答案链接 | 栈 |
| 905 | sort array by parity | 答案链接 | 排序 |
| 907 | sum of subarray minimums | 答案链接 | 栈 |
| 921 | minimum add to make parentheses valid | 答案链接 | 栈 |
| 922 | sort array by parity ii | 答案链接 | 双指针 |
| 938 | range sum of bst | 答案链接 | 树递归 |
| 941 | valid mountain array | 答案链接 | 双指针 |
| 946 | validate stack sequences | 答案链接 | 回溯剪枝 |
| 974 | subarray sums divisible by k | 答案链接 | 子数组 |
| 986 | interval list intersections | 答案链接 | 区间问题 |
| 1004 | max consecutive ones iii | 答案链接 | 滑动窗口 |
| 1019 | next greater node in linked list | 答案链接 | 栈 |
| 1030 | matrix cells in distance order | 答案链接 | 图论 |
| 1114 | print in order | 答案链接 | 多线程 |
| 1115 | print foobar alternately | 答案链接 | 多线程 |
| 1116 | print zero even odd | 答案链接 | 多线程 |
| 1117 | building h2o | 答案链接 | 多线程 |
| 1155 | number of dice rolls with target sum | 答案链接 | 背包问题 |
| 1195 | fizz buzz multithreaded | 答案链接 | 多线程 |
| 1226 | the dining philosophers | 答案链接 | 多线程 |
| 1363 | largest multiple of three | 答案链接 | 整除问题 |
| 1551 | minimum operations to make array equal | 答案链接 | 数学结论 |
| 5089 | meeting scheduler | 答案链接 | 双指针 |
题库:剑指offer 已刷:54
| 题号 | Title | java | 类别 |
|---|---|---|---|
| 11 | xuan zhuan shu zu de zui xiao shu zi lcof | 答案链接 | 剑指Offer |
| 12 | ju zhen zhong de lu jing lcof | 答案链接 | 剑指Offer |
| 15 | er jin zhi zhong 1de ge shu lcof | 答案链接 | 剑指Offer |
| 16 | shu zhi de zheng shu ci fang lcof | 答案链接 | 剑指Offer |
| 17 | da yin cong 1dao zui da de nwei shu lcof | 答案链接 | 剑指Offer |
| 18 | shan chu lian biao de jie dian lcof | 答案链接 | 剑指Offer |
| 21 | diao zheng shu zu shun xu shi qi shu wei yu ou shu qian mian lcof | 答案链接 | 剑指Offer |
| 22 | lian biao zhong dao shu di kge jie dian lcof | 答案链接 | 剑指Offer |
| 24 | fan zhuan lian biao lcof | 答案链接 | 剑指Offer |
| 26 | shu de zi jie gou lcof | 答案链接 | 剑指Offer |
| 27 | er cha shu de jing xiang lcof | 答案链接 | 剑指Offer |
| 28 | dui cheng de er cha shu lcof | 答案链接 | 剑指Offer |
| 29 | shun shi zhen da yin ju zhen lcof | 答案链接 | 剑指Offer |
| 30 | bao han minhan shu de zhan lcof | 答案链接 | 剑指Offer |
| 31 | zhan de ya ru dan chu xu lie lcof | 答案链接 | 剑指Offer |
| 33 | er cha sou suo shu de hou xu bian li xu lie lcof | 答案链接 | 剑指Offer |
| 34 | er cha shu zhong he wei mou yi zhi de lu jing lcof | 答案链接 | 剑指Offer |
| 35 | fu za lian biao de fu zhi lcof | 答案链接 | 剑指Offer |
| 37 | xu lie hua er cha shu lcof | 答案链接 | 剑指Offer |
| 38 | zi fu chuan de pai lie lcof | 答案链接 | 剑指Offer |
| 39 | shu zu zhong chu xian ci shu chao guo yi ban de shu zi lcof | 答案链接 | 剑指Offer |
| 40 | zui xiao de kge shu lcof | 答案链接 | 剑指Offer |
| 41 | shu ju liu zhong de zhong wei shu lcof | 答案链接 | 剑指Offer |
| 42 | lian xu zi shu zu de zui da he lcof | 答案链接 | 剑指Offer |
| 45 | ba shu zu pai cheng zui xiao de shu lcof | 答案链接 | 剑指Offer |
| 46 | ba shu zi fan yi cheng zi fu chuan lcof | 答案链接 | 剑指Offer |
| 47 | li wu de zui da jie zhi lcof | 答案链接 | 剑指Offer |
| 48 | zui chang bu han zhong fu zi fu de zi zi fu chuan lcof | 答案链接 | 剑指Offer |
| 50 | di yi ge zhi chu xian yi ci de zi fu lcof | 答案链接 | 剑指Offer |
| 51 | shu zu zhong de ni xu dui lcof | 答案链接 | 剑指Offer |
| 52 | liang ge lian biao de di yi ge gong gong jie dian lcof | 答案链接 | 剑指Offer |
| 53 | zai pai xu shu zu zhong cha zhao shu zi lcof | 答案链接 | 剑指Offer |
| 53 | que shi de shu zi lcof | 答案链接 | 剑指Offer |
| 54 | er cha sou suo shu de di kda jie dian lcof | 答案链接 | 剑指Offer |
| 55 | er cha shu de shen du lcof | 答案链接 | 剑指Offer |
| 55 | ping heng er cha shu lcof | 答案链接 | 剑指Offer |
| 56 | shu zu zhong shu zi chu xian de ci shu ii lcof | 答案链接 | 剑指Offer |
| 56 | shu zu zhong shu zi chu xian de ci shu lcof | 答案链接 | 剑指Offer |
| 57 | he wei sde liang ge shu zi lcof | 答案链接 | 剑指Offer |
| 57 | he wei sde lian xu zheng shu xu lie lcof | 答案链接 | 剑指Offer |
| 58 | zuo xuan zhuan zi fu chuan lcof | 答案链接 | 剑指Offer |
| 58 | fan zhuan dan ci shun xu lcof | 答案链接 | 剑指Offer |
| 59 | hua dong chuang kou de zui da zhi lcof | 答案链接 | 剑指Offer |
| 59 | dui lie de zui da zhi lcof | 答案链接 | 剑指Offer |
| 60 | nge tou zi de dian shu lcof | 答案链接 | 剑指Offer |
| 61 | bu ke pai zhong de shun zi lcof | 答案链接 | 剑指Offer |
| 62 | yuan quan zhong zui hou sheng xia de shu zi lcof | 答案链接 | 剑指Offer |
| 63 | gu piao de zui da li run lcof | 答案链接 | 剑指Offer |
| 64 | qiu 12n lcof | 答案链接 | 剑指Offer |
| 65 | bu yong jia jian cheng chu zuo jia fa lcof | 答案链接 | 剑指Offer |
| 66 | gou jian cheng ji shu zu lcof | 答案链接 | 剑指Offer |
| 67 | ba zi fu chuan zhuan huan cheng zheng shu lcof | 答案链接 | 剑指Offer |
| 68 | er cha sou suo shu de zui jin gong gong zu xian lcof | 答案链接 | 剑指Offer |
| 68 | er cha shu de zui jin gong gong zu xian lcof | 答案链接 | 剑指Offer |