题目
Find the contiguous subarray within an array (containing at least one number) which has the largest sum.
For example, given the array [?2,1,?3,4,?1,2,1,?5,4],
the contiguous subarray [4,...
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其他好文 时间：
2014-06-19 12:08:20
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270
题目
Given an array of non-negative integers, you are initially positioned at the first index of the array.
Each element in the array represents your maximum jump length at that position.
...
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其他好文 时间：
2014-06-19 11:46:47
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277
题目
Given an array of non-negative integers, you are initially positioned at the first index of the array.
Each element in the array represents your maximum jump length at that position.
...
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其他好文 时间：
2014-06-19 10:05:39
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278
Given a binary tree and a sum, find all root-to-leaf paths where each path's
sum equals the given sum.
For example:
Given the below binary tree and
sum = 22,
5
...
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其他好文 时间：
2014-06-15 19:55:39
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191
Given 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 given sum.
For example:
Given the below bin...
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其他好文 时间：
2014-06-15 09:34:35
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226
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.
Note: You can only move either down or right at...
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其他好文 时间：
2014-06-13 20:36:56
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280
Path Sum：Given 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 giv...
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其他好文 时间：
2014-06-13 16:09:02
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237
原先就看过这道题，觉得很复杂。不知道为什么今天一看觉得好水啊……难道这就是并查集的启发式合并？数组d【i】表示i到其父节点的距离，即中间隔了多少船舰。数组sum【i】记录以i为根的集合总共有多少个元素，将新节点插入的时候距离设为sum【i】就好了。代码：
1 var fa,d,sum:array[....
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其他好文 时间：
2014-06-12 09:45:29
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145
题意：求给定的一组不等式是否有解，不等式要么是：SUM(Xi) (a k (1)
要么是SUM(Xi) (a k,也就是T(a-1)-T(a+b) =
K.不存在这个序列的情况即为出现负环，所以这题建图后只需判断有无负环即可。这里用Bellman-Ford算法判负环注意：（1）a-1有可能为0,a....
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其他好文 时间：
2014-06-12 08:03:35
阅读次数：
213
