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全部文章 / leetcode （共11篇）

58. Length of Last Word(最后一个单词的长度)

题目地址：https://leetcode.com/problems/length-of-last-word/description/ Given a string s consists of upper/lower-case alphabets and empty space character...

2020-01-01

0 505

541. Reverse String II(反转字符串 II)

题目地址：https://leetcode.com/problems/reverse-string-ii/description/ Given a string and an integer k, you need to reverse the first k characters for eve...

2020-01-01

0 636

290. Word Pattern(单词模式)（Integer的坑）

题目地址：https://leetcode.com/problems/word-pattern/description/ Given a pattern and a string str, find if str follows the same pattern. Here follow mea...

2020-01-01

0 560

11. Container With Most Wate(盛最多水的容器)

Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endp...

leetcode

2018-10-08

0 541

3. Longest Substring Without Repeating Characters(无重复字符的最长子串)

Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanatio...

leetcode

2018-09-13

0 522

448. Find All Numbers Disappeared in an Array(找到所有数组中消失的数字)

Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements of [1, n]...

leetcode

2018-09-13

0 450

144. Binary Tree Preorder Traversal(二叉树的前序遍历)

题目地址：https://leetcode.com/problems/binary-tree-preorder-traversal/description/ Given a binary tree, return the preorder traversal of its nodes' value...

leetcode

2018-05-24

0 566

268. Missing Number(缺失数字)

题目地址：https://leetcode.com/problems/missing-number/description/ Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one ...

leetcode

2018-05-22

0 631

572. Subtree of Another Tree(另一个树的子树)

题目地址:https://leetcode.com/problems/subtree-of-another-tree/description/ Given two non-empty binary trees s and t, check whether tree t has exactly th...

leetcode

2018-05-07

0 531

67. Add Binary(二进制求和)

题目地址：https://leetcode.com/problems/add-binary/description/ Given two binary strings, return their sum (also a binary string). The input strings are ...

leetcode

2018-05-05

0 536