原文:学会从后往前遍历,例 [LeetCode] Pascal's Triangle II,剑指Offer 题4

当我们需要改变数组的值时,如果从前往后遍历,有时会带来很多麻烦,比如需要插入值,导致数组平移,或者新的值覆盖了旧有的值,但旧有的值依然需要被使用。这种情况下,有时仅仅改变一下数组的遍历方向,就会避免这些困难。 最直观的一题是 剑指Offer上的面试题 另外一道例题,就是LeetCode上的Pascal s Triangle II Pascal s Triangle II Given an inde ...

2014-07-24 11:22 0 4469 推荐指数:

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[LeetCode] Pascal's Triangle II

Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3,Return [1,3,3,1]. Note:Could you optimize your algorithm ...

Tue Nov 13 19:44:00 CST 2012 0 3108
Pascal's Triangle II Leetcode java

题目: Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3, Return [1,3,3,1]. Note: Could you optimize your ...

Sun Aug 03 10:59:00 CST 2014 0 2465
[leetcode]Pascal's Triangle @ Python

地址:https://oj.leetcode.com/problems/pascals-triangle/ 题意: Given numRows, generate the first numRows of Pascal's ...

Wed Jun 04 03:49:00 CST 2014 0 2314
LeetCode】118. Pascal's Triangle

Pascal's Triangle Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows = 5,Return 按定义做。 每一层的第i个位置,等于 ...

Mon Oct 13 06:07:00 CST 2014 0 3492
[LeetCode] Pascal's Triangle 杨辉三角

Given a non-negative integer numRows, generate the first numRows of Pascal's triangle. In Pascal's triangle, each number is the sum of the two ...

Sat Oct 18 12:17:00 CST 2014 2 7486
offer 面试8

面试8: 题目:二叉树的下一个节点 题目描述:给定一个二叉树和其中的一个结点,请找出中序遍历顺序的下一个结点并且返回。注意,树中的结点不仅包含左右子结点,同时包含指向父结点的指针。 解题思路:详见offer P65页 解题代码: ...

Wed Jun 13 00:29:00 CST 2018 0 1150
 
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