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[leetcode] Gas Station
Gas StationThere areNgas stations along a circular route, where the amount of gas at stationiisgas[i].You have a car with an unlimited gas tank and it...
分类:其他好文   时间:2015-01-18 20:55:10    阅读次数:135
Gas Station
https://oj.leetcode.com/problems/gas-station/There areNgas stations along a circular route, where the amount of gas at stationiisgas[i].You have a car...
分类:其他好文   时间:2015-01-15 12:29:53    阅读次数:202
模拟ATM取款机
题目: 假设一个简单的ATM机的取款过程是这样的:首先提示用户输入密码(pssword),最多只能输入三次,超过三次则提示用户“密码错误,请取卡”结束交易。如果用户密码正确,载体丝用户输入金额(amount),ATM机只能输出100元的纸币,一次取钱数要求最低100,最高2000元。如果用户输入的金...
分类:其他好文   时间:2015-01-15 00:10:37    阅读次数:448
[leetcode]Gas Station
问题描述: There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with an unlimited gas tank and it costs cost[i] of gas to travel from statio...
分类:其他好文   时间:2015-01-13 23:20:36    阅读次数:266
数据库 列 转 行
表转成代码如下:1 SELECT YEAR 年, 2 SUM(CASE MONTH WHEN 1 THEN amount ELSE 0 END) 一月,3 SUM(CASE WHEN MONTH=2 THEN amount ELSE 0 END) 二月,4 SUM(CASE WHEN MONTH=3...
分类:数据库   时间:2015-01-13 17:26:34    阅读次数:218
exists,in的区别-mysql
如说两张表一张是用户表TDefUser(userid,address,phone),一张是消费表TAccConsume(userid,time,amount),我要查消费超过5000的用户记录,那么我可以写select * from TDefUser where exists (...
分类:数据库   时间:2015-01-09 12:32:01    阅读次数:241
购物车数量加减代码
.amount-wrap .icon{ display: inline-block; width: 28px; height: 28px; line-height: 28px; text-align: center; border: 1px solid #cdcd...
分类:其他好文   时间:2015-01-09 10:39:56    阅读次数:205
C++ Primer Notes [to be continued..]
The type determines the amount of storage that is allocated for the variable and the set of operations that can be performed on it.int ival(1024); // ...
分类:编程语言   时间:2015-01-08 07:03:32    阅读次数:237
SICP 习题 (2.19) 解题总结:重写零钱兑换程序
SICP 习题2.19 要求我们重新设计1.2.2节的零钱兑换程序,要求我们可以轻易改变程序里用的兑换币种。我们先看看1.2.2节的零钱兑换程序,代码是这样的:(define (RMB-Change amount) (format #t "Changing ~S~%" amount) (cond ((= amount 0) 0) ((< amount 0) 0) (else (RMB-...
分类:其他好文   时间:2015-01-07 00:39:21    阅读次数:186
scala编程第18章学习笔记——有状态的对象
银行账号的简化实现:scala> class BankAccount{ | private var bal: Int = 0 | def balance: Int = bal | def deposit(amount: Int) { | require(amount ...
分类:其他好文   时间:2014-12-30 22:06:12    阅读次数:149
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