程序媛詹妮弗

2019年4月19日

[leetcode]92. Reverse Linked List II反转链表2

摘要： Reverse a linked list from position m to n. Do it in one-pass. Note: 1 ≤ m ≤ n ≤ length of list. Example: 题意：给定一个链表，反转第m~n个节点。反转链表的一般思路 Solution1： 1 阅读全文

posted @ 2019-04-19 14:12 程序媛詹妮弗阅读(133) 评论(0) 推荐(0) 编辑

[leetcode]94. Binary Tree Inorder Traversal二叉树中序遍历

摘要： Given a binary tree, return the inorder traversal of its nodes' values. Example: Follow up: Recursive solution is trivial, could you do it iteratively 阅读全文

posted @ 2019-04-19 03:04 程序媛詹妮弗阅读(127) 评论(0) 推荐(0) 编辑

2019年4月18日

[leetcode]100. Same Tree相同的树

摘要： Given two binary trees, write a function to check if they are the same or not. Two binary trees are considered the same if they are structurally ident 阅读全文

posted @ 2019-04-18 18:55 程序媛詹妮弗阅读(119) 评论(0) 推荐(0) 编辑

[leetcode]54. Spiral Matrix螺旋矩阵

摘要： Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. Example 1: Example 2: 题意：按螺旋方式遍历矩阵。 Solution 阅读全文

posted @ 2019-04-18 17:55 程序媛詹妮弗阅读(111) 评论(0) 推荐(0) 编辑

[leetcode]58. Length of Last Word最后一个词的长度

摘要： Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string. If the last word 阅读全文

posted @ 2019-04-18 17:50 程序媛詹妮弗阅读(116) 评论(0) 推荐(0) 编辑

[leetcode]41. First Missing Positive第一个未出现的正数

摘要： Given an unsorted integer array, find the smallest missing positive integer. Example 1: Example 2: Example 3: Note: Your algorithm should run in O(n) 阅读全文

posted @ 2019-04-18 15:50 程序媛詹妮弗阅读(117) 评论(0) 推荐(0) 编辑

2019年4月17日

[leetcode]37. Sudoku Solver 解数独

摘要： Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku solution must satisfy all of the following rules: Empty cells are indica 阅读全文

posted @ 2019-04-17 03:23 程序媛詹妮弗阅读(178) 评论(0) 推荐(0) 编辑

2019年4月16日

[leetcode]30. Substring with Concatenation of All Words由所有单词连成的子串

摘要： You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a conca 阅读全文

posted @ 2019-04-16 16:24 程序媛詹妮弗阅读(128) 评论(0) 推荐(0) 编辑

2019年4月15日

[leetcode]29. Divide Two Integers两整数相除

摘要： Given two integers dividend and divisor, divide two integers without using multiplication, division and mod operator. Return the quotient after dividi 阅读全文

posted @ 2019-04-15 05:56 程序媛詹妮弗阅读(225) 评论(0) 推荐(0) 编辑

[leetcode]43. Multiply Strings高精度乘法

摘要： Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string. Example 1: Ex 阅读全文

posted @ 2019-04-15 03:09 程序媛詹妮弗阅读(151) 评论(0) 推荐(0) 编辑