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LeetCode Reverse Integer
Reverse digits of an integer.Example1: x = 123, return 321Example2: x = -123, return -321click to show spoilers.Have you thought about this?Here are some good questions to ask before coding. Bonus poi...
分类:其他好文   时间:2015-03-18 16:02:37    阅读次数:120
LeetCode – Refresh – Binary Tree Zigzag Level Order Traversal
Made a stupid bug....... When reverse the vector, stop it at mid. Otherwise, it will swap back......Mark!!!!!!!! 1 /** 2 * Definition for binary tree....
分类:其他好文   时间:2015-03-18 10:23:29    阅读次数:120
LeetCode – Refresh – Binary Tree Post Order Traversal
Still 3 methods:Same with inorder, but post order is a little different. We need to treat it as reverse result of preorder.So we go to right branch fi...
分类:其他好文   时间:2015-03-18 08:57:58    阅读次数:132
LeetCode – Refresh – Binary Tree Level Order Traversal ii
This question is almost same as the previous one.I just use a stack (another vector) of vector to store the level result. Then reverse it. 1 /** 2 * ....
分类:其他好文   时间:2015-03-18 08:56:41    阅读次数:155
[LeetCode] Evaluate Reverse Polish Notation stack 栈
Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another express...
分类:其他好文   时间:2015-03-18 01:09:26    阅读次数:160
[LeetCode]Evaluate Reverse Polish Notation
Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some examples: [“2...
分类:其他好文   时间:2015-03-17 21:56:20    阅读次数:160
Reverse Bits
Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as00000010100101000001111010011100), return ...
分类:其他好文   时间:2015-03-17 21:45:00    阅读次数:103
【leetcode】Reverse Bits(middle)
Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as00000010100101000001111010011100), return ...
分类:其他好文   时间:2015-03-17 19:27:15    阅读次数:111
leetcode题解||Reverse Integer 问题
problem: Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 thinking: (1)整型反转直观很容易理解。如正负,尾数为0等问题还好处理。 (2)反转溢出问题要仔细处理。 code: class Solution { public: ...
分类:其他好文   时间:2015-03-17 18:04:05    阅读次数:132
翻转句子中单词的顺序
题目:输入一个英文句子,翻转句子中单词的顺序,但单词内字符的顺序不变。句子中单词以空格符隔开。为简单起见,标点符号和普通字母一样处理。例如输入“I am a student.”,则输出“student. a am I”。 分析:先颠倒句子中的所有字符,再颠倒每个单词内的字符。由于单词内的字符被翻转两次,因此顺序仍然和输入时的顺序保持一致。 void Reverse(char *pBegi...
分类:其他好文   时间:2015-03-17 14:19:07    阅读次数:177
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