Exponential notation You are given a positive decimal number x. Your task is to convert it to the "simple exponential notation". Let x = a·10b, where 1 ≤ a < 10, then in general case the "simple exponential notation" looks like &quo…

C. Exponential notation 题目连接: http://www.codeforces.com/contest/691/problem/C Description You are given a positive decimal number x. Your task is to convert it to the "simple exponential notation". Let x = a·10b, where 1 ≤ a < 10, then in gen…

C. Exponential notation time limit per test: 2 seconds memory limit per test:256 megabytes input: standard input output: standard output You are given a positive decimal number x. Your task is to convert it to the "simple exponential notation".…

题目链接: C. Exponential notation time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given a positive decimal number x. Your task is to convert it to the "simple exponential notation"…

无聊写两个题解吧,上午做比赛拉的,感触很多! B. Barnicle time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Barney is standing in a bar and starring at a pretty girl. He wants to shoot her with his heart arrow but…

题目链接: http://codeforces.com/problemset/problem/691/C 题目大意: 输入一个数,把它表示成a·10b形式(aEb).输出aEb,1<=a<10,b如果为1要省略Eb 题目思路: [模拟] 如果字符串没有‘.'我就在最后加上一个'.'方便处理. 先把头尾多余的0去掉,然后把这个数按照'.'拆成两半,统计整数部分的位数zs. 接着统计'.'后面的0的个数xs,再把所有数字放到一个数组里,再把头多余的0去掉(0.0000xx). 之后按照zs和sx的…

题目链接:http://codeforces.com/problemset/problem/691/C 题意: 给你一个浮点数,让你把这个数转化为 aEb 的形式,含义为 a * 10b, 其中 a 只能为一个不小于 1.0 且不大于等于10.0的小数, b 为一个不为0 的整数.具体样例参考原题的输入输出. 思路: 直接模拟就好,感觉写的好复杂,分了许多情况,需要注意许多特殊情况,注意不输出小数点 (".")的情况还有多余的 “0” 的情况 . 代码: #include <bi…

关于transition的几个基本点: 1. transition()是针对与每个DOM element的,每个DOM element的transition并不会影响其他DOM element的transition操作: 2. 对于每一个DOM element的transition每次只能执行一个,如果在一个DOM element上添加了许多transition操作,只有最后一个会起作用,前面的都会被覆盖掉.但是例外是,当这些transition是chaining的形式连接的时候,这些trans…

上一篇随笔中总结了js数据类型检测的几个方法和jQuery的工具方法type方法,本篇要分析几个方法都依赖type方法,所以不了解type方法的请先参看http://www.cnblogs.com/yy-hh/p/4667950.html isFunction方法 用于测试是否为函数的对象 示例: function stub() {} var objs = [ function () {}, { x:15, y:20 }, null, stub, "function" ]; jQuer…

Go to the first, previous, next, last section, table of contents. Printing Output One of the most common actions is to print, or output, some or all of the input. You use the print statement for simple output. You use the printf statement for fancier…