YesterdayLee的博客

1.题目描述Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [±][1-9].[0-9]+E[±][0-9]+ which means that the integer portion has exactly one digit, there is at leas

vectorvector也叫变长数组，即“长度根据需要而自动改变的数组”。在编写C++程序时使用vector，需要加上以下头文件和语句：#include<vector>using namespace std;1.vector的定义vector<typename> name;其中typename指的是类型，name则指变长数组名。在使用时，typename可以是int,double,char等任意的基本类型，也可以是结构体类型，除此之外，还可以是STL标准容器，如vect

1011 World Cup Betting (20分)1.题目描述With the 2010 FIFA World Cup running, football fans the world over were becoming increasingly excited as the best players from the best teams doing battles for the World Cup trophy in South Africa. Similarly, football be