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原创 464. Can I Win(我能赢吗)
464. Can I Win(硬币找零)Can I Win硬币找零题目链接题目描述题目分析方法状态压缩动态规划算法描述参考代码题目链接https://leetcode.com/problems/can-i-win/description/题目描述 In the “100 game,” two players take turns adding, to a running total
2017-12-25 17:46:11
1348
原创 322. Coin Change(硬币找零)
322. Coin Change(硬币找零)Coin Change硬币找零题目链接题目描述题目分析方法动态规划算法描述参考代码题目链接https://leetcode.com/problems/coin-change/description/题目描述 You are given coins of different denominations and a total amount
2017-12-18 23:46:15
790
原创 304. Range Sum Query 2D - Immutable(二维范围和查询——恒定)
304. Range Sum Query 2D - Immutable(二维范围和查询——恒定)Range Sum Query 2D - Immutable二维范围和查询恒定题目链接题目描述题目分析方法动态规划算法描述参考代码题目链接https://leetcode.com/problems/range-sum-query-2d-immutable/description/题目描述
2017-12-11 22:45:44
564
原创 152. Maximum Product Subarray (最大乘积子数列)
152. Maximum Product Subarray (最大乘积子数列)Maximum Product Subarray 最大乘积子数列题目链接题目描述题目分析方法动态规划算法描述参考代码题目链接https://leetcode.com/problems/maximum-product-subarray/description/题目描述 Find the contiguous
2017-12-04 11:06:29
411
原创 91. Decode Ways(解码方式)
91. Decode Ways(解码方式)Decode Ways解码方式题目链接题目描述题目分析方法动态规划算法描述参考代码题目链接https://leetcode.com/problems/decode-ways/description/题目描述 A message containing letters from A-Z is b
2017-11-27 10:34:31
355
原创 134. Gas Station(加油站)
134. Gas Station(加油站)Gas Station加油站题目链接题目描述题目分析方法一暴力算法描述方法二跳跃算法描述参考代码方法一暴力方法二跳跃题目链接https://leetcode.com/problems/gas-station/description/题目描述 There are N gas sta
2017-11-20 00:10:39
650
原创 62. Unique Paths & 63. Unique Paths II(唯一路径1&2)
62. Unique Paths & 63. Unique Paths II(唯一路径1&2)Unique Paths 63 Unique Paths II唯一路径12Unique Paths题目链接题目描述题目分析方法动态规划算法描述参考代码Unique Paths II题目链接题目描述题目分析方法动态规划算法描述参考代码
2017-11-05 22:51:23
436
原创 53. Maximum Subarray (最大子数列)
53. Maximum Subarray (最大子数列)Maximum Subarray 最大子数列题目链接题目描述题目分析方法动态规划算法描述参考代码题目链接https://leetcode.com/problems/maximum-subarray/description/题目描述 Find the contiguous sub
2017-10-28 23:49:57
233
原创 376. Wiggle Subsequence(摆动子序列)
44. 376. Wiggle Subsequence(摆动子序列)376 Wiggle Subsequence摆动子序列题目链接题目描述题目分析方法贪心算法描述参考代码题目链接https://leetcode.com/problems/wiggle-subsequence/description/题目描述 A sequence of numbers is called a wig
2017-10-28 20:38:46
522
原创 44. Wildcard Matching(通配符匹配)
44. Wildcard Matching(通配符匹配)Wildcard Matching通配符匹配题目链接题目描述题目分析方法BFS算法描述参考代码题目链接https://leetcode.com/problems/wildcard-matching/description/题目描述 Implement wildcard patt
2017-10-23 00:33:07
387
原创 45. Jump Game II(跳跃游戏2)
45. Jump Game II(跳跃游戏2)Jump Game II跳跃游戏2题目链接题目描述题目分析方法贪心算法描述参考代码题目链接https://leetcode.com/problems/jump-game-ii/description/题目描述 Given an array of non-negative integers, you are initially positi
2017-10-15 00:55:08
864
原创 399. Evaluate Division(计算除法的值)
399. Evaluate Division(计算除法的值)Evaluate Division计算除法的值题目链接题目描述题目分析方法深搜并查集算法描述参考代码题目链接https://leetcode.com/problems/evaluate-division/description/题目描述 Equations are given in the format A / B = k,
2017-10-14 17:09:25
448
原创 332. Reconstruct Itinerary(重建行程)
332. Reconstruct Itinerary(重建行程)Reconstruct Itinerary重建行程题目链接题目描述题目分析方法一深搜回溯算法描述方法二深搜算法描述参考代码方法一深搜回溯方法二分治算法题目链接https://leetcode.com/problems/reconstruct-itinerary/description/题目描述 Given a l
2017-10-09 19:41:03
710
原创 310. Minimum Height Trees(最小高度树)
310. Minimum Height Trees(最小高度树)Minimum Height Trees最小高度树题目链接题目描述题目分析方法删除叶子节点直到节点数小于等于二算法描述参考代码题目链接https://leetcode.com/problems/minimum-height-trees/description/题目描述 For a undirected graph wit
2017-09-28 10:12:42
766
原创 240. Search a 2D Matrix II(搜索二维矩阵)
240. Search a 2D Matrix II(搜索二维矩阵)Search a 2D Matrix II搜索二维矩阵题目链接题目描述题目分析方法一对每一行二分查找算法描述方法二沿折线查找算法描述参考代码方法一对每一行二分查找方法二沿折线查找结语题目链接https://leetcode.com/problems/search-
2017-09-18 00:07:14
2428
原创 215. Kth Largest Element in an Array(数组中第k大元素)
215. Kth Largest Element in an Array(数组中第k大元素)Kth Largest Element in an Array数组中第k大元素题目链接题目描述题目分析方法一优先队列算法描述方法二分治算法利用快排思想算法描述参考代码方法一优先队列方法二分治算法利用快排思想结语题目链接https://leetcode.com/problems/kth-
2017-09-13 00:11:15
282
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