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2. Add Two Numbers 1. 题目 You are given two non empty linked lists representing two non negative integers. The digits are stored in reverse order and e 阅读全文
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20. Valid Parentheses 1. 题目 Given a string containing just the characters , , , , and , determine if the input string is valid. An input string is val 阅读全文
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121. Best Time to Buy and Sell Stock 0. 参考文献 | 序号 | 文献 | | | | | 1 | [LeetCode:Best Time to Buy and Sell Stock I II III] | 1. 题目 Say you have an array 阅读全文
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120. Triangle 0. 参考文献 | 序号 | 文献 | | | | | 1 | "Leetcode 120 Triangle" | | 2 | "[eetCode 120 Triangle" ] | 1.题目 Given a triangle, find the minimum path 阅读全文
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96. Unique Binary Search Trees 0. 参考文献 | 序号 | 文献 | | | | | 1 | "leetcode 96. Unique Binary Search Trees" | | 2 | "[LeetCode] 96. Unique Binary Search 阅读全文
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91. Decode Ways 1. 题目 A message containing letters from is being encoded to numbers using the following mapping: Given a non empty string containing o 阅读全文
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72. Edit Distance 0. 参考文献 | 序号 | 文献 | | | | | 1 | "LeetCode 72. Edit Distance 最短字符串编辑距离 动态规划" | 1.题目 Given two words word1 and word2 , find the minimu 阅读全文
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70. Climbing Stairs 1. 题目 You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how man 阅读全文
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64. Minimum Path Sum Given a m x n grid filled with non negative numbers, find a path from top left to bottom right which minimizes the sum of all num 阅读全文
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63. Unique Paths II 1 题目 A robot is located at the top left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move eith 阅读全文
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62.Unique Paths 1. 题目 A robot is located at the top left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either 阅读全文