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

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5508681

Пользователь

Скопин Семён Андреевич

Время

12:59<< 20.10.2021 12:59 (11:00) 13:00>>

Обработка

12:59 ... 12:59 (4,45 сек.)

Файл

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

Турнир

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

Задача

A: Набор фигур

Набор тестов

Ограничения

Время: 1с Память: 4096Мб

Состояние [?]

CE	Ошибка компиляции

код | результаты

main.cpp: In function 'int main()':
main.cpp:21:5: error: redefinition of 'int main()'
 int main() {
     ^~~~
In file included from main.cpp:17:0:
figure.h:104:5: note: 'int main()' previously defined here
 int main() {
     ^~~~

[печатать | | ]

≡

#include <iostream>
#include <iomanip>
#include <memory>
#include <vector>
#include <cmath>
#include <sstream>
#include <string>

class Figure {
 public:
    explicit Figure(const std::string& name)
    : name_current(name) {}
    virtual std::string Name() = 0;
    virtual double Perimeter() = 0;
    virtual double Area() = 0;

const std::string name_current;
 private:
};

class Triangle : public Figure {
 public:
    Triangle(double a, double b, double c)
    : Figure("TRIANGLE"), a_current(a), b_current(b), c_current(c) {}

std::string Name() override {
        return name_current;
    }

double Perimeter() override {
        return a_current + b_current + c_current;
    }

double Area() override {
        double p = Perimeter() / 2;
        return sqrt(p * (p - a_current) * (p - b_current) * (p - c_current));
    }

private:
    double a_current, b_current, c_current;
};

class Rect: public Figure {
 public:
    Rect(double width, double height)
    : Figure("RECT"), width_current(width), height_current(height) {}

std::string Name() override {
        return name_current;
    }

double Perimeter()override {
        return 2 * (width_current + height_current);
    }

double Area() override {
        return width_current * height_current;
    }

private:
    double width_current, height_current;
};

class Circle : public Figure{
 public:
    explicit Circle(double r)
    : Figure("CIRCLE"), r_current(r) {}

std::string Name() override {
        return name_current;
    }

double Perimeter() override {
        return 2 * 3.14 * r_current;
    }

double Area() override {
        return 3.14 * r_current * r_current;
    }

private:
    double r_current;
};

std::shared_ptr<Figure> CreateFigure(std::istream& in) {
    std::string type;
    in >> type;
    if (type == "TRIANGLE") {
        double a, b, c;
        in >> a >> b >> c;
        return std::make_shared<Triangle>(a, b, c);
    } else if (type == "RECT") {
        double width, height;
        in >> width >> height;
        return std::make_shared<Rect>(width, height);
    } else if (type == "CIRCLE") {
        double r;
        in >> r;
        return std::make_shared<Circle>(r);
    }
    return {};
}

int main() {
  std::vector<std::shared_ptr<Figure>> figures;
  for (std::string line; getline(std::cin, line); ) {
    std::istringstream in(line);

std::string command;
    in >> command;
    if (command == "ADD") {
      in >> std::ws;
      figures.push_back(CreateFigure(in));
    } else if (command == "PRINT") {
      for (const auto& current_figure : figures) {
        std::cout << std::fixed << std::setprecision(3)
             << current_figure->Name() << " "
             << current_figure->Perimeter() << " "
             << current_figure->Area() << std::endl;
      }
    }
  }
  return 0;
}

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