You are given a string,S, and a list of
words,L, that are all of the same length. Find all starting indices of
substring(s) in S that is a concatenati...
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其他好文 时间:
2014-05-28 04:03:54
阅读次数:
240
原题地址:https://oj.leetcode.com/problems/climbing-stairs/题意:You
are climbing a stair case. It takesnsteps to reach to the top.Each time you can
either cl...
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编程语言 时间:
2014-05-28 03:27:49
阅读次数:
267
原题地址:https://oj.leetcode.com/problems/minimum-path-sum/题意:Given
amxngrid filled with non-negative numbers, find a path from top left to bottom
right w...
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编程语言 时间:
2014-05-28 03:03:13
阅读次数:
320
算法:通过递归并限定上下限元素的值的范围可以计算package
com.bupt.acm.leetcode;public class ValidBinary { private class TreeNode{ int
val; TreeNode left; ...
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数据库 时间:
2014-05-27 17:17:11
阅读次数:
345
Given an array of integers, find two numbers such
that they add up to a specific target number.The function twoSum should return
indices of the two nu...
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其他好文 时间:
2014-05-26 19:50:39
阅读次数:
314
Given an array of non-negative integers, you
are initially positioned at the first index of the array.Each element in the
array represents your maximu...
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其他好文 时间:
2014-05-26 18:46:20
阅读次数:
251
原题地址:https://oj.leetcode.com/problems/path-sum/题意:Given
a binary tree and a sum, determine if the tree has a root-to-leaf path such that
adding up all...
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编程语言 时间:
2014-05-26 18:37:11
阅读次数:
295
原题地址:https://oj.leetcode.com/problems/unique-binary-search-trees-ii/题意:接上一题,这题要求返回的是所有符合条件的二叉查找树,而上一题要求的是符合条件的二叉查找树的棵数,我们上一题提过,求个数一般思路是动态规划,而枚举的话,我们就考...
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编程语言 时间:
2014-05-26 18:30:01
阅读次数:
256
Determine whether an integer is a palindrome. Do
this without extra space.Some hints:Could negative integers be palindromes? (ie,
-1)If you are thinki...
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其他好文 时间:
2014-05-26 18:07:52
阅读次数:
217
原文:
Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without ...
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其他好文 时间:
2014-05-25 21:30:02
阅读次数:
276