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Haskell高阶函数
Haskell functions can take functions as parameters and return functions as return values. A function that does either of those is called a higher orde...
分类:其他好文   时间:2014-06-02 18:16:16    阅读次数:334
hdu 1086 You can Solve a Geometry Problem too (几何)
You can Solve a Geometry Problem tooTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6932Accepted S...
分类:其他好文   时间:2014-06-02 12:40:04    阅读次数:325
leetcode 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?求链表是否有环的问题,要考虑链表为空的情况,定义一个快指针和一个慢指针,如果快指针和...
分类:其他好文   时间:2014-06-02 08:05:16    阅读次数:255
Leetcode Linked List Cycle II
Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without using extra space?借用博...
分类:其他好文   时间:2014-06-02 07:32:33    阅读次数:291
POJ1068——Parencodings
ParencodingsDescriptionLet S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways: q By an integer sequence P ...
分类:其他好文   时间:2014-06-02 06:19:50    阅读次数:185
iOS: 布局可视化语法 Visual Format Syntax
可视化语法 Visual Format SyntaxThe following are examples of constraints you can specify using the visual format. Note how the text visually matches the im...
分类:移动开发   时间:2014-06-02 05:37:46    阅读次数:351
CF(438D) The Child and Sequence(线段树)
题意:对数列有三种操作: Print operation l,?r. Picks should write down the value of . Modulo operation l,?r,?x. Picks should perform assignment a[i]?=?a[i] mod x for each i (l?≤?i?≤?r). Set operation k...
分类:其他好文   时间:2014-06-02 02:56:56    阅读次数:465
POJ2506——Tiling
TilingDescriptionIn how many ways can you tile a 2xn rectangle by 2x1 or 2x2 tiles?Here is a sample tiling of a 2x17 rectangle.InputInput is a sequenc...
分类:其他好文   时间:2014-06-02 00:08:55    阅读次数:343
Can't add self as subview
iOS7刚发布的时候,总是出现这个 Can't add self as subview  的崩溃,团队内部没出现过,但是外部用户的crash频频上报这个崩溃。 异常描述和崩溃堆栈是这样的: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Can't add se...
分类:其他好文   时间:2014-06-01 17:32:08    阅读次数:489
POJ 3579- Median
?? Description Given N numbers, X1, X2, ... , XN, let us calculate the difference of every pair of numbers: ∣Xi - Xj∣ (1 ≤ i < j ≤ N). We can get C(N,2) differences through this work, and no...
分类:其他好文   时间:2014-06-01 14:07:56    阅读次数:347
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