When we are focusing on solving problems, we usually prefer to stay in front of computers rather than go out for lunch. At this time, we may call for food delivery.
Suppose there are N people living ...
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其他好文 时间：
2014-08-11 15:02:22
阅读次数：
333
题意：给你一组数n m n的意思是有多少个村庄，并且给你n-1个关系，m的意思是要你连通的村庄。现在要你求出连通m个村庄所花费的钱
思路：题目一看数据，就像是要你去求最小生成树的子数，但是仔细审题会发现一句“Meanwhile you should use the least money. You may suppose that the initial transportation net...
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其他好文 时间：
2014-08-11 12:06:42
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188
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order.
You may assume no duplicates in the array....
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其他好文 时间：
2014-08-10 18:48:50
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203
A so juicy and interesting problem! Recommend to everyone!A final solution may not jump into your mind immediately, of course, DP is not a trivial top...
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其他好文 时间：
2014-08-10 15:37:00
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209
Given inorder and postorder traversal of a tree, construct the binary tree.
Note:
You may assume that duplicates do not exist in the tree.
给出二叉树的中序遍历和后序遍历结果，恢复出二叉树。
后序遍历序列的最后一个元素值是二叉树的根节点的值，查找...
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其他好文 时间：
2014-08-09 23:15:09
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312
Sudoku SolverWrite a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character'.'.You may assume that the...
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其他好文 时间：
2014-08-09 23:00:09
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269
There are a few scenarios in which your activity is destroyed due to normal app behavior, such as when the user presses the Back button or your activity signals its own destruction by calling finish(). The system may also destroy your activity if it's curr...
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移动开发 时间：
2014-08-09 02:35:56
阅读次数：
492
Evaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are +, -, *, /. Each operand may be an integer or another ex...
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其他好文 时间：
2014-08-08 23:49:56
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314
Description
Given m sequences, each contains n non-negative integer. Now we may select one number from each sequence to form a sequence with m integers. It's clear that we may get n ^ m this kind o...
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其他好文 时间：
2014-08-08 16:10:06
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236
"that are all of the same length" is the key. This statement makes everything much simpler. And, please take care that L may contain duplicated string...
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其他好文 时间：
2014-08-08 15:33:46
阅读次数：
176
