Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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其他好文 时间：
2014-07-22 00:28:36
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169
G. Count the ColorsTime Limit: 2000msMemory Limit: 65536KB64-bit integer IO format:%lld Java class name:MainPainting some colored segments on a line, ...
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其他好文 时间：
2014-07-22 00:23:34
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220
Description
Problem H
Halum
Time Limit : 3 seconds
You are given a directed graph G(V,E) with a set of vertices and edges. Each edge (i,j) that connects some ...
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其他好文 时间：
2014-07-22 00:08:34
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307
Distinct Subsequences
A subsequence of a given sequence is just the given sequence with some elements (possibly none) left out. Formally, given a sequence X = x1x2…xm,
another sequence Z = z1...
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其他好文 时间：
2014-07-21 15:44:16
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244
题目：Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2).You are given a target ....
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编程语言 时间：
2014-07-21 14:37:05
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266
This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'的意思是，这版本的 MySQL 不支持使用 LIMIT 子句的 IN/ALL/ANY/SOME 子查询，即是支持非 IN/ALL/ANY/SOME ...
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数据库 时间：
2014-07-21 14:13:39
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238
Problem Description
In mathematics, a subsequence is a sequence that can be derived from another sequence by deleting some elements without changing the order of the remaining elements. For example, ...
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其他好文 时间：
2014-07-21 11:13:44
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270
Activity When you are creating a new instance of Activity via Intent, you can pass some extra data to the Activity. Data are stored in Bundle and can be retrieved by calling?getIntent().getExtras...
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移动开发 时间：
2014-07-21 10:11:31
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272
Problem Description
Whuacmers use coins.They have coins of value A1,A2,A3...An Silverland dollar. One day Hibix opened purse and found there were some coins. He decided to buy a very nice watch in...
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其他好文 时间：
2014-07-20 23:01:28
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271
Reverse digits of an integer.
Example1: x = 123, return 321
Example2: x = -123, return -321
click to show spoilers.
Have you thought about this?
Here are some good questions to ask before c...
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编程语言 时间：
2014-07-20 22:12:03
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251
