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Pie HDU杭电1969 【二分】
Problem Description My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. F of my friends are coming to ...
分类:其他好文   时间:2015-08-03 14:38:08    阅读次数:102
随机生成编码(判断重复)(oracle函数)
原文地址——http://blog.csdn.net/qq525099302/article/details/47253351create or replace function generate_coupons_code(v_length in number:=16) return varchar2 is v_code varchar2(70); type t_arr is varray(...
分类:数据库   时间:2015-08-03 11:35:49    阅读次数:127
Leetcode: plus one
June 22, 2015Given a number represented as an array of digits, plus one to the number.Leetcode: plus one, 喜欢这道题, 看看有哪些解法; 一个个试过来. (6种方法)Read the web b...
分类:其他好文   时间:2015-08-03 06:29:15    阅读次数:150
[leedcode 179] Largest Number
Given a list of non negative integers, arrange them such that they form the largest number.For example, given[3, 30, 34, 5, 9], the largest formed num...
分类:其他好文   时间:2015-08-03 00:55:11    阅读次数:133
Sum Root to Leaf Numbers
Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number.An example is the root-to-leaf path1->2->3which rep...
分类:其他好文   时间:2015-08-02 23:12:12    阅读次数:219
【LeetCode】6 - ZigZag Conversion
The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font fo...
分类:其他好文   时间:2015-08-02 23:08:40    阅读次数:212
【LeetCode】202 - Happy Number
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...
分类:移动开发   时间:2015-08-02 22:57:06    阅读次数:151
数据结构基础 算法复杂度分析(一) 概念篇
为什么要进行算法分析? 预测算法所需的资源 计算时间(CPU 消耗)内存空间(RAM 消耗)通信时间(带宽消耗) 预测算法的运行时间 在给定输入规模时,所执行的基本操作数量,或者称为算法复杂度(Algorithm Complexity) 如何衡量算法复杂度? 内存(Memory)时间(Time)指令的数量(Number of Steps)特定...
分类:编程语言   时间:2015-08-02 21:44:16    阅读次数:213
Sum
Sum 时间限制:1000 ms  |  内存限制:65535 KB 难度:2 描述Consider the natural numbers from 1 to N. By associating to each number a sign (+ or -) and calculating the value of this expression we obtain ...
分类:其他好文   时间:2015-08-02 21:41:37    阅读次数:165
Program C 暴力求解
DescriptionA ring is composed of n (even number) circles as shown in diagram. Put natural numbers into each circle separately, and the sum of numbers....
分类:其他好文   时间:2015-08-02 21:32:34    阅读次数:154
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