【题目】
Follow up for "Remove Duplicates":
What if duplicates are allowed at most twice?
For example,
Given sorted array A = [1,1,1,2,2,3],
Your function should return length = 5, and A is now [1,1,2,2,3].
【题意】
给定一个有序数组,给数组去重,和Remove Duplicates from...
分类:
其他好文 时间:
2014-06-03 05:36:24
阅读次数:
219
今天偶尔从一个师兄那里看到了checkio,感觉很好玩。
我看到的第一个题是要求写一个函数,接收一个数组,然后返回其中的重复元素,而且元素的顺序不能发生变化。换句话说,就是去掉其中不含重复的元素。比如:
checkio([1,
2,
3,
1,
3])
==
[1,
3,
1,
3],
"1st
example"
checkio([1,
2,
3,...
分类:
编程语言 时间:
2014-06-03 03:16:33
阅读次数:
360
【题目】
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x.
You should preserve the original relative order of the nodes in each of the two partitions.
For example,
Given 1->4->3-...
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其他好文 时间:
2014-06-03 00:02:29
阅读次数:
270
jquery.scrollTo-min.js 用户返回顶部及动画到目的地,支持目标值、锚点。
使用方法:
1.引入jQuery
2.$.scrollTo( this.hash || targetValue, time);
example:$.scrollTo( this.hash || 0, 500);
jquery.scrollTo-min.js
; (functio...
分类:
Web程序 时间:
2014-06-01 10:56:16
阅读次数:
312
Given a linked list, swap every two adjacent nodes and return its head.
For example,
Given 1->2->3->4, you should return the list as 2->1->4->3.
Your algorithm should use only constant space....
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其他好文 时间:
2014-06-01 10:41:23
阅读次数:
242
一、利用SharedPreferences来实现数据的保存和读取:
1、Mainactivity:
package com.example.sharedpreferencesdemo;
import com.example.sharedpreferencesdemo.util.SharedPreferencesUtil;
import android.app.Activity;
imp...
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移动开发 时间:
2014-06-01 09:51:36
阅读次数:
331
title:
A Pythagorean triplet is a set of three natural numbers, a
b
c, for which,
a2 + b2 =
c2
For example, 32 + 42 = 9 + 16 = 25 = 52.
There exists exactly one Pythagorean triplet for wh...
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其他好文 时间:
2014-06-01 09:17:53
阅读次数:
251
【题目】
A message containing letters from A-Z is being encoded to numbers using the following mapping:
'A' -> 1
'B' -> 2
...
'Z' -> 26
Given an encoded message containing digits, determine the total number of ways to decode it.
For example,
Given encoded ...
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其他好文 时间:
2014-06-01 08:59:37
阅读次数:
258
【题目】
Given a collection of integers that might contain duplicates, S, return all possible subsets.
Note:
Elements in a subset must be in non-descending order.
The solution set must not contain duplicate subsets.
For example,
If S = [1,2,2], a solution ...
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其他好文 时间:
2014-06-01 08:51:06
阅读次数:
292
题目:
给定整数n,返回n对匹配的小括号字符串数组。
For example, given n = 3, a solution set is:
"((()))", "(()())", "(())()", "()(())", "()()()"
分析:
这种问题的模式是:1)问题的解有多个 ,2)每个解都是由多个有效的 ”步骤“ 组成的,3)变更以有解的某个或某些”步骤“ 可...
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其他好文 时间:
2014-05-31 22:28:45
阅读次数:
467