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【JSTL】判断Session中的值是否为空
[html] view plaincopyprint? span style="white-space:pre">span>span style="white-space:pre">                           span>c:if test="${sessionScope.errorcode!=null}">   span style="wh...
分类:Web程序   时间:2014-11-27 10:42:42    阅读次数:268
[LeetCode] Palindrome Number 验证回文数字
Determine whether an integer is a palindrome. Do this without extra space.click to show spoilers.Some hints:Could negative integers be palindromes? (i...
分类:其他好文   时间:2014-11-27 06:44:59    阅读次数:215
Leetcode-Sort List
Sort a linked list in O(n log n) time using constant space complexity.Analsys:We use Merge Sort.NOTE: We should practice other sort algorithm, linke Q...
分类:其他好文   时间:2014-11-27 01:35:39    阅读次数:213
Q2:Reverse Words in a String
Clarification:What constitutes a word?A sequence of non-space characters constitutes a word.Could the input string contain leading or trailing spaces?...
分类:其他好文   时间:2014-11-26 20:37:05    阅读次数:142
LeetCode[Linked List]: Linked List Cycle
Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 这个题目如果没有空间复杂度O(1)的限制,我可以想到的方法就是:遍历整个list,将每个节点的地址存入一个vector,如果发现某个节点的next的地址已经在vec...
分类:其他好文   时间:2014-11-26 19:02:15    阅读次数:119
LeetCode[Linked List]: Linked List Cycle II
Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Follow up: Can you solve it without using extra space? 这个题目跟Linked List Cycle一样,我也没有能够自己独立找到解决方法,...
分类:其他好文   时间:2014-11-26 18:57:10    阅读次数:126
ural 2029 Towers of Hanoi Strike Back (数学找规律)
ural 2029 Towers of Hanoi Strike Back链接:http://acm.timus.ru/problem.aspx?space=1&num=2029题意:汉诺塔问题,给定一串只有(A, B, C)的字符串(A代表在第一根柱子,B代表在第二根柱子,C代表在第三根柱子),从...
分类:其他好文   时间:2014-11-26 18:36:17    阅读次数:214
ural 2032 Conspiracy Theory and Rebranding (数学水题)
ural 2032 Conspiracy Theory and Rebranding链接:http://acm.timus.ru/problem.aspx?space=1&num=2032题意:给定一个三角形的三条边 (a, b, c),问是否可放在二维坐标,使得3个顶点都是整数点。若可以,输出任意...
分类:其他好文   时间:2014-11-26 18:03:17    阅读次数:158
对链表排序,时间开销O(nlogn), 空间开销O(1)
Sort a linked list in O(n log n) time using constant space complexity....
分类:编程语言   时间:2014-11-26 16:37:32    阅读次数:172
Merge Sorted Array
Given two sorted integer arrays A and B, merge B into A as one sorted array. Note: You may assume that A has enough space (size that is greater or equal to m + n) to hold additional elements from ...
分类:其他好文   时间:2014-11-26 16:29:34    阅读次数:164
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