Problem Description:Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number.An example is the root-to-leaf ...
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其他好文 时间:
2014-07-07 16:01:34
阅读次数:
223
Problem Description: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 bina...
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其他好文 时间:
2014-07-07 15:57:05
阅读次数:
252
having子句与where有类似之处但也有差别,都是设定条件的语句。在查询过程中聚合语句(sum,min,max,avg,count)要比having子句优先运行.而where子句在查询过程中运行优先级别优先于聚合语句(sum,min,max,avg,count)。简单说来:where子句:sel...
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其他好文 时间:
2014-07-07 15:53:46
阅读次数:
236
Problem Description:Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For ex...
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其他好文 时间:
2014-07-07 15:29:11
阅读次数:
280
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
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其他好文 时间:
2014-07-07 14:58:47
阅读次数:
175
Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.
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其他好文 时间:
2014-07-07 14:48:39
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160
1990题意:每头牛有两个属性v,x,计算sigma(max(v[i],v[j])*abs(x[i]-x[j]))1=x[j] +sigma(v[j]*(x[j]-x[i])) x[i]=x[j]其中dist.sum(maxn)-dist.sum(x[i]) 就是坐标在[x[i],maxn]...
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其他好文 时间:
2014-07-07 14:26:47
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292
题目:Merge Two Sorted ListsMerge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the ...
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其他好文 时间:
2014-07-07 14:06:19
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221
I Can Guess the Data Structure!Time limit: 1.000 secondsThere is a bag-like data structure, supporting two operations:1 xThrow an element x into the b...
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其他好文 时间:
2014-07-07 13:26:22
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296
Given two binary strings, return their sum (also a binary string).For example,a ="11"b ="1"Return"100". 1 class Solution 2 { 3 public: 4 ...
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其他好文 时间:
2014-07-03 11:23:54
阅读次数:
164