2 курс. Программирование на C++. Турнир 2, осень 2021

ru en cn

5784023

User

Нгуен Чан Хоанг Чунг

Time

10:23<< 16.11.2021 10:23 (27 d. 08:24)

Processing

10:23 ... 10:23 (2,36 sec.)

File

5784023.cpp (CLang++ 5.0.0 + Address Sanitizer)

Contest

2 курс. Программирование на C++. Турнир 2, осень 2021

Problem

A: Набор фигур

Testset

Limits

Time: 1s Memory: 4096Mb

Status [?]

Accepted

source | results

[print | | ]

≡

#include <string>
#include <memory>

class Figure {
 public:
    virtual std::string Name() = 0;
    virtual double Perimeter() = 0;
    virtual double Area() = 0;
};

class Triangle : public Figure {
 public:
    Triangle(const int& one, const int& two, const int& three) {
        a = one;
        b = two;
        c = three;
    }
    std::string Name() {
        return "TRIANGLE";
    }
    double Perimeter() {
        return a + b + c;
    }
    double Area() {
        double p = (a + b + c) / 2.0;
        return sqrt(p * (p - a) * (p - b) * (p - c));
    }
 private:
    int a, b, c;
};

class Rect : public Figure {
 public:
    Rect(const int& one, const int& two) {
        a = one;
        b = two;
    }
    std::string Name() {
        return "RECT";
    }
    double Perimeter() {
        return 2.0 * (a + b);
    }
    double Area() {
        return a * b;
    }
 private:
    int a, b;
};

class Circle : public Figure {
 public:
    explicit Circle(const int& one) {
        a = one;
    }
    std::string Name() {
        return "CIRCLE";
    }
    double Perimeter() {
        return 2 * 3.14 * a;
    }
    double Area() {
        return 3.14 * a * a;
    }
 private:
    int a;
};

std::shared_ptr<Figure> CreateFigure(std::istringstream& is) {
    std::string fig;
    is >> fig;
    if (fig == "RECT") {
        int a, b;
        is >> a >> std::ws >> b;
        return std::make_shared<Rect>(a, b);
    } else if (fig == "TRIANGLE") {
        int a, b, c;
        is >> a >> std::ws >> b >> std::ws >> c;
        return std::make_shared<Triangle>(a, b, c);
    } else {
        int a;
        is >> a;
        return std::make_shared<Circle>(a);
    }
}

(1 682 b)

0.045s 0.009s 9