码迷,mamicode.com
首页 >  
搜索关键字:given a n n matrix    ( 24496个结果
C - Minimum Inversion Number
DescriptionThe inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i aj.For a given sequence of ....
分类:其他好文   时间:2014-05-05 11:42:13    阅读次数:276
LeetCode OJ - Balanced Binary Tree
判断树是否是平衡的,这道题中的平衡的概念是指任意节点的两个子树的高度相差不超过1,我用递归的方法把所有的节点的高度都计算了下,并且在计算的过程记录每个节点左右两颗子树的高度差,最后通过遍历这个高度差就可以知道是否是平衡的。下面是AC代码: 1 /** 2 * Given a binary...
分类:其他好文   时间:2014-05-05 09:54:44    阅读次数:378
LeetCode OJ - Symmetric Tree && Same Tree
这两道题,大同小异。 我都是用BFS,在遍历的过程,判断结构是否相同/对称,值是否相同。下面是AC代码: 1 /** 2 * Given a binary tree, check whether it is a mirror of itself (ie, symmetric aroun...
分类:其他好文   时间:2014-05-05 09:48:26    阅读次数:401
LeetCode OJ - Binary Tree Level Order Traversal 1 && 2
BFS以及它的扩展,我发现栈是个很好用的数据结构,特别是对于顺序需要颠倒的时候!!!这里有个重要的信息:可以用null来标识一个level的结束!!!下面是AC代码: 1 /** 2 * Given a binary tree, return the bottom-up level ord...
分类:其他好文   时间:2014-05-05 09:46:06    阅读次数:402
[LeetCode] 在一堆字符串中找出包含相同字符的 group的较快方法,题 Anagrams
题目:Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case.class Solution {public: vector ...
分类:其他好文   时间:2014-05-04 20:48:08    阅读次数:608
LeetCode: plusOne 题解
Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant digit is at...
分类:其他好文   时间:2014-05-04 19:46:18    阅读次数:372
线段数 --- (单点更新、求逆序对)
Minimum Inversion Number Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64u Description The inversion number of a given number seque...
分类:其他好文   时间:2014-05-04 12:27:07    阅读次数:349
UVA 674 Coin Change
Suppose there are 5 types of coins: 50-cent, 25-cent, 10-cent, 5-cent, and 1-cent. We want to make changes with these coins for a given amount of mone...
分类:其他好文   时间:2014-05-04 12:00:00    阅读次数:363
pat 1038 Smallest Number解题心得
题目描述:1038. Recover the Smallest Number (30)Given a collection of number segments, you are supposed to recover the smallest number from them. For examp...
分类:其他好文   时间:2014-05-04 10:49:34    阅读次数:308
【LeetCode】Substring with Concatenation of All Words
You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without an...
分类:其他好文   时间:2014-05-03 21:35:49    阅读次数:310
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!