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Divide and Conquer

D&C 个人理解

Divide and Conquer 分治法 近来刷LC，看到好多题要用分治法来解，感觉理解的不是很好，故特此学习。 Wiki 概念： 分治法，将一个较难处理的问题分成一系列子问题，分别解决这些子问题，直到子问题可以简单的求解。原问题的解可以认为是子问题解的合并。一般而言这些子...

Posted by freeCookie🍪 on January 3, 2017

Leetcode - Word Square

LC422, LC425

LC422. Valid Word Square 新年第一po，发现每次一到法定假日我就什么都不发，感觉错过了很多记录美好的瞬间(快够) 顺便这个markdown为什么每次标号都不正确？感觉我好像没错呀。 Anyway， 新年快乐❤️ 爱CS爱Coding我爱这个世界 -> 做不出来...

Posted by freeCookie🍪 on January 2, 2017

Leetcode - Closest Binary Search Tree Value I/II

LC270, LC272

LC270. Closest Binary Search Tree Value Given a non-empty binary search tree and a target value, find the value in the BST that is closest to the ...

Posted by freeCookie🍪 on January 2, 2017

LC475. Heaters

LC475. Heaters Now, you are given positions of houses and heaters on a horizontal line, find out minimum radius of heaters so that all houses coul...

Posted by freeCookie🍪 on January 2, 2017

LC474. Ones and Zeroes

Building strings using existed ones.

LC474. Ones and Zeroes Find the maximum number of strings that you can form with given m 0s and n 1s. Each 0 and 1 can be used at most once. Inpu...

Posted by freeCookie🍪 on January 2, 2017

LC471. Encode String with Shortest Length

Encode the string such that its encoded length is the shortest.

LC471. Encode String with Shortest Length Given a non-empty string, encode the string such that its encoded length is the shortest. The encoding r...

Posted by freeCookie🍪 on January 2, 2017

LC469. Convex Polygon

Decide a convex polygon

LC469. Convex Polygon Given a list of points that form a polygon when joined sequentially, find if this polygon is convex (Convex polygon definiti...

Posted by freeCookie🍪 on January 2, 2017

LC44. Wildcard Matching

Implement wildcard pattern matching with support for '?' and '*'.

LC44. Wildcard Matching Implement wildcard pattern matching with support for '?' and '*'. '?' Matches any single character. '*' Matches any seque...

Posted by freeCookie🍪 on January 2, 2017

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