Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character'.'.You may assume that there will be on...
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其他好文 时间：
2014-06-26 18:49:23
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216
// -*-c++-*-/** OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield** This library is open source and may be redistributed and/or modified under* ...
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其他好文 时间：
2014-06-25 13:57:17
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187
在ARC项目中使用performSelector:withObject:函数出现“performSelector may cause a leak because its selector is unknown”。在stackoverflow找到了一个解决方案，地址：http://stackover...
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其他好文 时间：
2014-06-25 13:03:01
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270
Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complete a...
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其他好文 时间：
2014-06-25 12:59:40
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202
题目
The string "PAYPALISHIRING" is written in a zigzag pattern on a given
number of rows like this: (you may want to display this pattern in a fixed font for better legibility)
P A H ...
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其他好文 时间：
2014-06-24 23:59:25
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338
【题目】
Say you have an array for which the ith element is the price of a given stock on day i.
Design an algorithm to find the maximum profit. You may complete at most two transactions.
Note:
You may not engage in multiple transactions at the same time (i...
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其他好文 时间：
2014-06-24 23:28:43
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223
【问题】
Evaluate the value of an arithmetic expression in Reverse Polish Notation.
Valid operators are +, -, *, /.
Each operand may be an integer or another expression.
Some examples:
...
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编程语言 时间：
2014-06-24 23:22:53
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331
【题目】
Given a binary tree, find the maximum path sum.
The path may start and end at any node in the tree.
For example:
Given the below binary tree,
1
/ 2 3
Return 6.
【题意】
给定一棵二叉树，找出其中路径和最大的路径，然会返回最大路径和。
本题中的路径不是从根节点到叶子节点这样的传统的路...
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其他好文 时间：
2014-06-24 20:42:59
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268
【题目】
Say you have an array for which the ith element is the price of a given stock on day i.
Design an algorithm to find the maximum profit. You may complete as many transactions as you like (ie, buy one and sell one share of the stock multiple times). H...
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其他好文 时间：
2014-06-24 19:40:53
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240
题目
Given a string S,
find the longest palindromic substring in S.
You may assume that the maximum length of S is
1000, and there exists one unique longest palindromic substring.
方法
...
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其他好文 时间：
2014-06-24 19:36:55
阅读次数：
212
