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LeetCode: Pow(x, n) 解题报告
Pow(x, n) Implement pow(x, n).SOLUTION 1:使用二分法。1. 负数的情况,使用以下的公式转化为求正数power,另外,考虑到MIN_VALUE可能会造成越界的情况,我们先将负数+1:X^(-n) = X^(n + 1) * XX^n = 1/(x^(-n))2....
分类:其他好文   时间:2014-12-19 21:53:05    阅读次数:217
Lintcode: Minimum Subarray 解题报告
Minimum Subarray原题链接: http://lintcode.com/zh-cn/problem/minimum-subarray/#Given an array of integers, find the subarray with smallest sum.Return the s...
分类:其他好文   时间:2014-12-19 19:05:04    阅读次数:250
Lintcode: Subarray Sum 解题报告
Subarray Sum 原题链接:http://lintcode.com/zh-cn/problem/subarray-sum/#Given an integer array, find a subarray where the sum of numbers is zero. Your code ...
分类:其他好文   时间:2014-12-19 19:02:40    阅读次数:357
【LeetCode】Restore IP Addresses 解题报告
【题目】 Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example: Given "25525511135", return ["255.255.11.135", "255.255.111.35"...
分类:其他好文   时间:2014-12-19 17:26:18    阅读次数:117
LeetCode: Binary Tree Maximum Path Sum 解题报告
Binary Tree Maximum Path SumGiven a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the be...
分类:其他好文   时间:2014-12-18 23:37:42    阅读次数:417
LeetCode: Binary Tree Postorder Traversal 解题报告
Binary Tree Postorder Traversal Given a binary tree, return the postorder traversal of its nodes' values.For example:Given binary tree {1,#,2,3}, 1 \ ...
分类:其他好文   时间:2014-12-18 23:31:30    阅读次数:236
LeetCode: Path Sum 解题报告
Path SumGiven a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the give...
分类:其他好文   时间:2014-12-18 22:11:57    阅读次数:157
LeetCode: Sum Root to Leaf Numbers 解题报告
Sum Root to Leaf Numbers Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An example is the root-t...
分类:其他好文   时间:2014-12-18 22:11:40    阅读次数:206
LeetCode: Balanced Binary Tree 解题报告
Balanced Binary Tree Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tr...
分类:其他好文   时间:2014-12-18 22:05:21    阅读次数:180
bjfu1109 最小公倍数和
这题真是过了n年才a。最早是在2010年北大培训比赛上看到的这题,当时我不会,竹教主也不会,但他记下来了,研究一段时间后就会了,还把这题加到我校oj上。过了这么多年,我上网搜,关于这个问题的解题报告还是没有,于是我花了几天时间做了出来,发布此解题报告。题目是要求从1到n的所有数与n的最小公倍数的和,...
分类:其他好文   时间:2014-12-18 22:00:23    阅读次数:477
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