问题描述:
Follow up for N-Queens problem.
Now, instead outputting board configurations, return the total number of distinct solutions.
(N-Queens problem can see
here )
基本思路:
可参照N-Queens问题,按...
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其他好文 时间:
2014-12-21 22:12:49
阅读次数:
157
一、原题
Linked List Cycle
Given a linked list, determine if it has a cycle in it.
Follow up:
Can you solve it without using extra space?
二、分析
选用两个指针扫描链表,一个速度快,一个速度慢,若两个指针相遇,说明有环。
三、...
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其他好文 时间:
2014-12-18 20:44:05
阅读次数:
157
N-Queens II (LEVEL 4 难度级别,最高级5)Follow up for N-Queens problem.Now, instead outputting board configurations, return the totalnumber of distinct solutio...
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其他好文 时间:
2014-12-18 20:18:25
阅读次数:
183
定义:FIRST(α):α的开始符号集或首符号集。FOLLOW(A):{a|...Aa...,a∈V_T}。SELECT(A->α):若α不能推出ε,则SELECT(A->α)=FIRST(α),否则SELECT(A->α)=(FIRST(α)-{ε})∪FOLLOW(A)。
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其他好文 时间:
2014-12-16 22:12:51
阅读次数:
172
题意:
Follow up for N-Queens problem.
Now, instead outputting board configurations, return the total number of distinct solutions....
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其他好文 时间:
2014-12-15 00:14:20
阅读次数:
252
Permutations IIGiven a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the follow...
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其他好文 时间:
2014-12-13 19:16:20
阅读次数:
180
Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without using extra space?首先指...
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其他好文 时间:
2014-12-12 01:13:05
阅读次数:
243
Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?解题思路:突发奇想,脑洞大开。回路,自然是走到已经走过的地方,如何知道这个地方已经走...
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其他好文 时间:
2014-12-11 23:48:27
阅读次数:
147
标题:Linked List Cycle通过率:36%难度中等Given a linked list, determine if it has a cycle in it.Follow up: Can you solve it without using extra space?拿到题后我以为很简单...
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其他好文 时间:
2014-12-11 17:09:01
阅读次数:
167
Remove Duplicates from Sorted Array II
Leetcode
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],
Y...
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编程语言 时间:
2014-12-10 21:18:41
阅读次数:
209