林克砍樹。 如圖: 前置知識 \(\texttt{Splay}\) \(\uparrow\) 這個算非常重要的,一定要先學會 \(\texttt{Splay}\) 。 因為 \(\texttt{LCT}\) 中的 \(\texttt{Splay}\) 與我們平時寫的還不 ...
You are asked to cut off trees in a forest for a golf event. The forest is represented as a non negative D map, in this map: represents theobstaclecan t be reached. represents thegroundcan be walked ...
2018-01-29 21:13 1 3813 推薦指數:
林克砍樹。 如圖: 前置知識 \(\texttt{Splay}\) \(\uparrow\) 這個算非常重要的,一定要先學會 \(\texttt{Splay}\) 。 因為 \(\texttt{LCT}\) 中的 \(\texttt{Splay}\) 與我們平時寫的還不 ...
忘光啦 /dk /dk 本來 rotate 都會打錯的我現在終於會打啦 於是 splay 打錯了 基礎要點 實鏈剖分 重鏈剖分是我們很熟悉的一個結構,它的優秀之處在於可以將樹上問 ...
原題地址:https://oj.leetcode.com/problems/unique-binary-search-trees/ 題意: Given n, how many structurally unique BST's (binary ...
Given n, generate all structurally unique BST's (binary search trees) that store values 1...n. For example,Given n = 3, your program should return ...
原題地址:https://oj.leetcode.com/problems/unique-binary-search-trees-ii/ 題意:接上一題,這題要求返回的是所有符合條件的二叉查找樹,而上一題要求的是符合條件的二叉查找樹的棵數,我們上一題提過,求個數一般思路是動態規划,而枚舉的話 ...
rooted trees, those with minimum height are called m ...
題目: Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n = 3, there are a total ...
題目: Given n, generate all structurally unique BST's (binary search trees) that store values 1...n. For example, Given n = 3, your program should ...