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

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5786518

Пользователь

Морозов Денис Витальевич

Время

19:39<< 16.11.2021 19:39 (27 д. 17:40) 19:41>>

Обработка

19:39 ... 19:39 (5,71 сек.)

Файл

5786518.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

In file included from main.cpp:17:0:
figure.h: In function 'auto CreateFigure(std::istringstream&)':
figure.h:66:12: error: inconsistent deduction for auto return type: 'std::shared_ptr<Rect>' and then 'int'
     return 0;
            ^
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/c++allocator.h:33:0,
                 from /usr/include/c++/7/bits/allocator.h:46,
                 from /usr/include/c++/7/string:41,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/ostream:38,
                 from /usr/include/c++/7/iostream:39,
                 from main.cpp:1:
/usr/include/c++/7/ext/new_allocator.h: In instantiation of 'void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = Rect; _Args = {double&, double&}; _Tp = Rect]':
/usr/include/c++/7/bits/alloc_traits.h:475:4:   required from 'static void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = Rect; _Args = {double&, double&}; _Tp = Rect; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<Rect>]'
/usr/include/c++/7/bits/shared_ptr_base.h:526:39:   required from 'std::_Sp_counted_ptr_inplace<_Tp, _Alloc, _Lp>::_Sp_counted_ptr_inplace(_Alloc, _Args&& ...) [with _Args = {double&, double&}; _Tp = Rect; _Alloc = std::allocator<Rect>; __gnu_cxx::_Lock_policy _Lp = (__gnu_cxx::_Lock_policy)2]'
/usr/include/c++/7/bits/shared_ptr_base.h:637:4:   required from 'std::__shared_count<_Lp>::__shared_count(std::_Sp_make_shared_tag, _Tp*, const _Alloc&, _Args&& ...) [with _Tp = Rect; _Alloc = std::allocator<Rect>; _Args = {double&, double&}; __gnu_cxx::_Lock_policy _Lp = (__gnu_cxx::_Lock_policy)2]'
/usr/include/c++/7/bits/shared_ptr_base.h:1295:35:   required from 'std::__shared_ptr<_Tp, _Lp>::__shared_ptr(std::_Sp_make_shared_tag, const _Alloc&, _Args&& ...) [with _Alloc = std::allocator<Rect>; _Args = {double&, double&}; _Tp = Rect; __gnu_cxx::_Lock_policy _Lp = (__gnu_cxx::_Lock_policy)2]'
/usr/include/c++/7/bits/shared_ptr.h:344:64:   required from 'std::shared_ptr<_Tp>::shared_ptr(std::_Sp_make_shared_tag, const _Alloc&, _Args&& ...) [with _Alloc = std::allocator<Rect>; _Args = {double&, double&}; _Tp = Rect]'
/usr/include/c++/7/bits/shared_ptr.h:690:14:   required from 'std::shared_ptr<_Tp> std::allocate_shared(const _Alloc&, _Args&& ...) [with _Tp = Rect; _Alloc = std::allocator<Rect>; _Args = {double&, double&}]'
/usr/include/c++/7/bits/shared_ptr.h:706:39:   required from 'std::shared_ptr<_Tp> std::make_shared(_Args&& ...) [with _Tp = Rect; _Args = {double&, double&}]'
figure.h:64:52:   required from here
/usr/include/c++/7/ext/new_allocator.h:136:4: error: invalid new-expression of abstract class type 'Rect'
  { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from main.cpp:17:0:
figure.h:31:7: note:   because the following virtual functions are pure within 'Rect':
 class Rect : public Figure {
       ^~~~
figure.h:8:25: note: 	virtual std::__cxx11::string Figure::Name() const
     virtual std::string Name() const = 0;
                         ^~~~
figure.h:9:20: note: 	virtual double Figure::Perimeter() const
     virtual double Perimeter() const = 0;
                    ^~~~~~~~~
figure.h:10:20: note: 	virtual double Figure::Area() const
     virtual double Area() const = 0;
                    ^~~~

[печатать | | ]

≡

#include <string>
#include <memory>
#include <cmath>
#include <sstream>

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

class Triangle : public Figure {
 public:
    double a;
    double b;
    double c;

explicit Triangle(int a, int b, int c) : a(a), b(b), c(c) {
    }

virtual const std::string Name() {return "Triangle";}
    virtual const double Perimetet() {return (a + b + c);}
    virtual const double Area() {
        double p = (a + b + c) / 2;
        double area = sqrt(p * (p - a) * (p - b) * (p - c));
        return area;
    }
};

class Rect : public Figure {
 public:
    double width;
    double height;

explicit Rect(int width, int height) : width(width), height(height) {
    }

virtual const std::string Name() {return "Rect";}
    virtual const double Perimetet() {return (2 * (width + height));}
    virtual const double Area() {return (width * height);}
};

class Circle : public Figure {
 public:
    double r;

explicit Circle(int r) : r(r) {
    }

virtual const std::string Name() {return "Circle";}
    virtual const double Perimetet() {return (6.28 * r);}
    virtual const double Area() {return (3.14 + pow(r, 2));}
};

// template <typename T>
auto CreateFigure(std::istringstream& is) {
    std::string command;
    is >> command;
    if (command == "RECT") {
        double width;
        double height;
        is >> width >> height;
        return std::make_shared<Rect>(width, height);
    }
    return 0;
    /*if (command == "TRIANGLE") {
        double a;
        double b;
        double c;
        is >> a >> b >> c;
        return std::make_shared<Triangle>(a, b, c);
    }
    if (command == "CIRCLE") {
    double r;
    is >> r;
    return std::make_shared<Circle>(r);
    }*/
}

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