leetcode 263 & 264是关于ugly number的;? https://leetcode.com/problems/ugly-number/ https://leetcode.com/problems/ugly-number-ii/ 简单的263,给定一个数,判断该数是否ugly;这个比较直观,只需要判断该...
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其他好文 时间:
2015-08-19 23:52:28
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383
1、题目名称 Consecutive Numbers(找出连续出现的数字) 2、题目地址 https://leetcode.com/problems/consecutive-numbers/ 3、题目内容 写一个SQL,查出表Logs中连续出现至少3次的数字: +----+-----+
|?Id?|...
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其他好文 时间:
2015-08-19 23:51:13
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254
DescriptionSometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party whe...
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其他好文 时间:
2015-08-19 23:21:27
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178
题目链接:https://leetcode.com/problems/ugly-number-ii/
题目:
Write a program to find the n-th
ugly number.
Ugly numbers are positive numbers whose prime factors only include 2,
3, 5. For example, 1,
...
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其他好文 时间:
2015-08-19 16:46:37
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603
题目链接:https://leetcode.com/problems/ugly-number/
题目:
Write a program to check whether a given number is an ugly number.
Ugly numbers are positive numbers whose prime factors only include 2,
3, 5....
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其他好文 时间:
2015-08-19 13:33:56
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400
129 Sum Root to Leaf Numbers链接:https://leetcode.com/problems/sum-root-to-leaf-numbers/
问题描述:
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An...
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其他好文 时间:
2015-08-19 07:08:42
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176
100 Same Tree链接:https://leetcode.com/problems/same-tree/
问题描述:
Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are structurall...
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其他好文 时间:
2015-08-19 07:08:34
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146
101 Symmetric Tree链接:https://leetcode.com/problems/symmetric-tree/
问题描述:
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary tree...
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其他好文 时间:
2015-08-19 07:08:32
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143
96 Unique Binary Search Trees链接:https://leetcode.com/problems/unique-binary-search-trees/
问题描述:
Given n, how many structurally unique BST’s (binary search trees) that store values 1…n?For example,
G...
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其他好文 时间:
2015-08-19 07:08:28
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126
98 Validate Binary Search Tree链接:https://leetcode.com/problems/validate-binary-search-tree/
问题描述:
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as...
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其他好文 时间:
2015-08-19 01:59:06
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171