fly_shi的专栏

Suppose that we have a square city with straight streets. A map of a city is a squareboard with n rows and n columns, each representing a street or a piece of wall. A blockhouse is a small castle tha

On every June 1st, the Children's Day, there will be a game named "crashing balloon" on TV.  The rule is very simple.  On the ground there are 100 labeled balloons, with the numbers 1 to 100.  After t

标准库算法for_each和boost库中Bind使用方法： #include #include #include #include using namespace std; class Shape { public: virtual void draw() { cout<<"Shap::draw"<<endl; } }; class Circle :