Problem C: 正方形、长方形、立方体

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Problem C: 正方形、长方形、立方体

Time Limit: 3 Sec   Memory Limit: 128 MB Submit: 2218   Solved: 1619 [ Submit][ Status][ Web Board]

Description

给出正方形（Square）、长方形（Rectangle）、立方体（Cuboid）的边长，求周长、面积、体积。 Square类只需存一条边长，构造函数产生一条输出，有边长、周长、面积的函数。 Rectangle类需存长和宽，若从Square类派生而来，因此只需增加一条边，构造函数产生一条输出，有长、宽、周长、面积的函数。 Cuboid类需存长宽高，若从Rectangle类派生而来，因此也只增加一条边，构造函数产生一条输出，有长、宽、高、周长、面积、体积的函数。它的周长定义为所有棱长之和。 ----------------------------------------------------------------------------- 请仔细阅读append.cc代码，并设计好正方形、长方形、立方体派生关系，使main()函数能够运行并得到正确的输出。

Input

输入分为三部分，每一部分都已一个整数n开始，表示后面有n组测试数据。 在第一部分测试数据中，每组是一个整数，表示正方形的边长。 在第二部分测试数据中，每组是两个整数，表示长方形的长和宽。 在第三部分测试数据中，每组是三个整数， 表示立方体的长和宽。

Output

每组测试数据对应的输出为两部分，前面是构造函数的输出，最后是输出图形的信息，包括长宽高、周长、面积、体积等信息，格式见sample；

Sample Input

1413 413 4 6

Sample Output

Construct Square (4)A Square length 4, Perimeter 16, Area 16=========================Construct Square (3)Construct Rectangle (3, 4)A Rectangle length 3, width 4, Perimeter 14, Area 12=========================Construct Square (3)Construct Rectangle (3, 4)Construct Cuboid (3, 4, 6)A Cuboid length 3, width 4, height 6, Perimeter 52, Area 108, Volume 72

HINT

Append Code

append.c, append.cc, [ Submit][ Status][ Web Board]

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#include <iostream> using namespace std; class Square { public: int length() const{ return len; } int perimeter() const { return len * 4; } int area() const{ return len * len; } public: Square(int l = 0 ) : len(l) { cout << "Construct Square (" << len << ")" << endl; } protected: int len; }; class Rectangle : public Square { public: int length() const{ return len; } int width() const{ return wid; } int perimeter() const { return (len + wid) * 2; } int area() const{ return len * wid; } public: Rectangle(int l, int w) : Square(l), wid(w) { cout << "Construct Rectangle (" << len << ", " << wid << ")" << endl; } protected: int wid; }; class Cuboid : public Rectangle { public: int length() const{ return len; } int width() const{ return wid; } int height() const{ return hei; } int perimeter() const { return (len + wid + hei) * 4; } int area() const{ return (len * wid + len * hei + hei * wid) * 2; } int volume() const{ return hei * len * wid; } public: Cuboid(int l, int w, int h) : Rectangle( l, w ), hei(h) { cout << "Construct Cuboid (" << len << ", " << wid << ", " << hei << ")" << endl; } protected: int hei; }; int main() { int cases, l, w, h; cin >> cases; for(int i = 1; i <= cases; ++i) { cin >> l; Square squa(l); cout << "A Square length " << squa.length() << ", "; cout << "Perimeter " << squa.perimeter() << ", "; cout << "Area " << squa.area() << endl; } cout << "=========================" << endl; cin >> cases; for(int i = 1; i <= cases; ++i) { cin >> l >> w; Rectangle rect(l, w); cout << "A Rectangle length " << rect.length() << ", width " << rect.width() << ", "; cout << "Perimeter " << rect.perimeter() << ", "; cout << "Area " << rect.area() << endl; } cout << "=========================" << endl; cin >> cases; for(int i = 1; i <= cases; ++i) { cin >> l >> w >> h; Cuboid cubo(l, w, h); cout << "A Cuboid length " << cubo.length() << ", width " << cubo.width() << ", height " << cubo.height() << ", "; cout << "Perimeter " << cubo.perimeter() << ", "; cout << "Area " << cubo.area() << ", "; cout << "Volume " << cubo.volume() << endl; } }