Problem Description:Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without u...
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其他好文 时间:
2014-07-07 17:00:35
阅读次数:
161
好题,也很实用,犯了几个错误
1.在枚举赋值的时候,思维有个错误:当当前的赋值不能填完这个数独,应该是继续下一个循环,而不是return false 终止枚举
2.Generic Programing写错了,,,本来那个memset想写成Generic Programing的,,,然后,永远只有第一组结果对
不说了,泪哈,,,
#include
#include
#include
#...
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其他好文 时间:
2014-06-30 11:04:33
阅读次数:
157
【题目】
Given a string s and a dictionary of words dict, determine if s can be segmented into a space-separated sequence of one or more dictionary words.
For example, given
s = "leetcode",
dict = ["leet", "code"].
Return true because "leetcode" can be segm...
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其他好文 时间:
2014-06-30 09:02:26
阅读次数:
276
var indexOfSorted = function f(arr,n){
//assume : arr has been sorted
var low = 0;
var high = arr.length - 1;
var mid = (low + high) / 2;
while(high - low > 1){
if(n == arr[low]){return low...
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Web程序 时间:
2014-06-30 08:54:10
阅读次数:
978
题目:
Given numRows, generate the first numRows of Pascal's triangle.
For example, given numRows = 5,
Return
[
[1],
[1,1],
[1,2,1],
[1,3,3,1],
[1,4,6,4,1]
]
分析:打印杨辉三角。numRows...
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其他好文 时间:
2014-06-30 06:25:24
阅读次数:
317
题目
Follow up for N-Queens problem.
Now, instead outputting board configurations, return the total number of distinct solutions.
方法
和上题方法一样,使用回溯法,结构基本相同,只需要返回数量。
public i...
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其他好文 时间:
2014-06-30 06:24:22
阅读次数:
273
【题目】
Given a string s and a dictionary of words dict, add spaces in s to construct a sentence where each word is a valid dictionary word.
Return all such possible sentences.
For example, given
s = "catsanddog",
dict = ["cat", "cats", "and", "sand", "dog...
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其他好文 时间:
2014-06-30 00:51:41
阅读次数:
295
题目
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-que...
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其他好文 时间:
2014-06-30 00:34:18
阅读次数:
188
看下面这段代码:#-*-coding:utf-8-*-importcopyclassPresent(object):def__init__(self,str_cmd):self._str_cmd=str_cmdprint"进入Present时的地址:",id(self._str_cmd)defset_value(self):temp="test_cmd"self._str_cmd=copy.deepcopy(temp)defget_value(self):returnself._s..
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编程语言 时间:
2014-06-29 21:38:46
阅读次数:
318
【题目】
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.
Return a deep copy of the list.
【题意】
给定一个链表,每个节点除了next指针外,还有一个random指针,指向任意的节点。
要求,复制这样的一个链表
【思路】
思路...
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其他好文 时间:
2014-06-29 20:41:21
阅读次数:
232