Description:In this kata you should simply determine, whether a given year is a leap year or not. In case you don't know the rules, here they are:year...
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其他好文 时间：
2015-07-05 21:09:20
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121
Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any positive integer...
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移动开发 时间：
2015-07-05 14:53:40
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127
Given a string containing just the characters '(', ')', '{', '}', '[' and ']',
determine if the input string is valid.
The brackets must close in the correct order, "()" and "()[]{}" are
all va...
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其他好文 时间：
2015-07-05 09:46:08
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95
Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.For example:
Given the below binary tree and sum = 2...
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其他好文 时间：
2015-07-04 15:32:56
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95
题目出处：https://leetcode.com/problems/palindrome-number/
题目：Determine whether an integer is a palindrome. Do this without extra space.
翻译：判断一个整型数是否是回文数
思路：将整型数转化为字符串，依次比较首尾
代码：
public class Solution...
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其他好文 时间：
2015-07-04 14:08:01
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171
Balanced Binary Tree : https://leetcode.com/problems/balanced-binary-tree/given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary...
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其他好文 时间：
2015-07-03 15:51:33
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118
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n...
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其他好文 时间：
2015-07-03 13:55:42
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97
Write an algorithm to determine if a number is "happy".
A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares...
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移动开发 时间：
2015-07-03 09:15:07
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131
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,
“A man, a plan, a canal: Panama” is a palindrome.
“race a car” is not a palin...
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其他好文 时间：
2015-07-02 22:38:27
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132
称号Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum....
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其他好文 时间：
2015-07-02 19:21:40
阅读次数：
98
