The gray code is a binary numeral system where
two successive values differ in only one bit.Given a non-negative
integernrepresenting the total number...
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其他好文 时间:
2014-04-30 00:21:32
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536
Given an arraySofnintegers, are there
elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in
the array which gives the sum of ...
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其他好文 时间:
2014-04-29 22:40:00
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438
[leetcode]Word Ladder II @
Python原题地址:http://oj.leetcode.com/problems/word-ladder-ii/参考文献:http://blog.csdn.net/doc_sgl/article/details/13341405
ht...
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编程语言 时间:
2014-04-29 21:42:30
阅读次数:
590
2014-04-29
00:15题目:将二叉搜索树展开成一个双向链表,要求这个链表仍是有序的,而且不能另外分配对象,就地完成。解法:Leetcode上也有,递归解法。代码: 1 //
17.13 Flatten a binary search tree into a doubly linked li...
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其他好文 时间:
2014-04-29 14:51:49
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460
LeetCode:Combinations这篇博客中给出了不包含重复元素求组合的5种解法。我们在这些解法的基础上修改以支持包含重复元素的情况。对于这种情况,首先肯定要对数组排序,以下不再强调修改算法1:按照求包含重复元素集合子集的方法LeetCode:Subsets
II算法1的解释,我们知道:若当...
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其他好文 时间:
2014-04-28 14:00:43
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717
Jump GameGiven an array of non-negative
integers, you are initially positioned at the first index of the array.Each
element in the array represents yo...
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其他好文 时间:
2014-04-28 11:30:27
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551
Given two binary strings, return their sum
(also a binary string).For example,a ="11"b
="1"Return"100".给定两个二进制的字符串,返回他们的和。对于a,b两个二进制字符串,首先通过交换使a的长度小于b...
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其他好文 时间:
2014-04-28 02:05:20
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502
The string"PAYPALISHIRING"is written in a
zigzag pattern on a given number of rows like this: (you may want to display
this pattern in a fixed font fo...
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其他好文 时间:
2014-04-27 21:36:45
阅读次数:
515
Given an arraySofnintegers, are there
elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in
the array which gives the sum of ...
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其他好文 时间:
2014-04-27 20:55:03
阅读次数:
567
??
1、Binary Tree Postorder Traversal
Given a binary tree, return the postorder traversal of its nodes' values.
For example:
Given binary tree {1,#,2,3},
1
2
/
3
retu...
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其他好文 时间:
2014-04-27 18:58:59
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481