如果你能说对下面这个语句的正确输出,那么恭喜你,这篇文章就不用看了~
List nums = Arrays.asList(1,1,null,2,3,4,null,5,6,7,8,9,10);
System.out.println("sum is:"+nums.stream().filter(num -> num != null).distinct().
mapToInt(num ->...
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编程语言 时间:
2015-02-23 22:31:19
阅读次数:
270
1078. Hashing (25)时间限制100 ms内存限制65536 kB代码长度限制16000 B判题程序Standard 作者CHEN, YueThe task of this problem is simple: insert a sequence of distinct positiv...
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其他好文 时间:
2015-02-21 10:52:00
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154
D. Looking for OwlsEmperor Palpatine loves owls very much. The emperor has some blueprints with the new Death Star, the blueprints contain n distinct ...
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其他好文 时间:
2015-02-21 00:16:05
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445
题目 爬楼梯问题,这是一道很有趣的问题。首先看题目:You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?这...
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其他好文 时间:
2015-02-20 14:08:50
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160
传送门:http://poj.org/problem?id=1094
Sorting It All Out
Description
An ascending sorted sequence of distinct values is one in which some form of a less-than operator is used to order the elem...
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其他好文 时间:
2015-02-20 09:46:55
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159
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other.
Given an integer n, return all distinct solutions to the n-queens puzzle.
...
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编程语言 时间:
2015-02-20 09:44:13
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171
Sorting It All OutTime Limit:1000MSMemory Limit:10000KTotal Submissions:26801Accepted:9248DescriptionAn ascending sorted sequence of distinct values i...
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编程语言 时间:
2015-02-18 16:24:49
阅读次数:
187
Given a set of distinct integers,S, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set must not co...
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其他好文 时间:
2015-02-18 00:59:31
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172
一、简单查询语句格式:select*|具体的列名as[别名]from表名称防止重复查询结果的关键字:distinct(用法:用于列表的前面)二、限定查询格式:select*|具体的列名from表名称where条件表达式null:表示该列中没有值三、in关键字语法:select*from表名称where列名in(值1,值2...)..
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数据库 时间:
2015-02-17 23:49:07
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386
Distinct SubsequencesGiven a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is...
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其他好文 时间:
2015-02-16 20:58:05
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180