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Leetcode Evaluate Reverse Polish Notation
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:2014-06-28 22:31:11    阅读次数:323
关于启动bash提示‘bash: export: `//这是新的': not a valid identifier’的解决办法
学习linux以来将centos改的也不少了,也不知道这个问题是由于那个修改来的。最近改bash的操作环境配置文件,用到了~/.bashrc这个文件,发现里面被我修改过。那是当年安装fcitx输入法的时候曾经设置过个人环境变量如下我当时是直接将这段粘贴到.bashrc这个文件中了,导致‘//这是新的...
分类:其他好文   时间:2014-06-28 19:20:51    阅读次数:1675
Word Break II
Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Return all such possibl...
分类:其他好文   时间:2014-06-28 12:40:47    阅读次数:219
Restore IP Addresses
Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",return["255.2...
分类:其他好文   时间:2014-06-26 00:07:07    阅读次数:311
Leetcode Restore IP Addresses
Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",return["255.2...
分类:其他好文   时间:2014-06-25 22:41:33    阅读次数:274
Evaluate Reverse Polish Notation (Python)
【问题】 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: ...
分类:编程语言   时间:2014-06-24 23:22:53    阅读次数:331
LeetCode:Valid Palindrome
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" i...
分类:其他好文   时间:2014-06-24 18:16:02    阅读次数:147
【Leetcode】Palindrome Number
Determine whether an integer is a palindrome. Do this without extra space. 思路:若使用【Leetcode】Reverse Integer 的方法,判断反转后的整数是否与原整数相同,则可能出现溢出情况;又因为题目要求不适用额外空间,可以之间对比整数第一个与最后一个数的值,再依次类推。 class Solution {...
分类:其他好文   时间:2014-06-22 20:43:56    阅读次数:187
LeetCode:Valid Sudoku,Sudoku Solver(数独游戏)
Valid SudokuDetermine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are...
分类:其他好文   时间:2014-06-21 16:40:45    阅读次数:280
Palindrome Partitioning II
Palindrome Partitioning II
分类:其他好文   时间:2014-06-18 10:04:30    阅读次数:219
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