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gandc committed 2024-05-10 19:52:53 +03:00
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#include <iostream> #include <iostream>
#include <fstream> #include <fstream>
#include <typeinfo> #include<string.h>
#include <cstring> #include <cstdlib>
#include <utility> #include <ctime>
using namespace std; #include <tuple>
using namespace std;
class Exception: public exception
{ /*class Exception: public exception
protected: {
// Сообщение об ошибке protected:
char* str; //????????? ?? ??????
public: char* str;
Exception(const char* s) public:
{ Exception(const char* s)
str = new char[strlen(s) + 1]; {
strcpy(str, s); str = new char[strlen(s) + 1];
} strcpy_s(str, strlen(s) + 1, s);
Exception(const Exception& e) }
{ Exception(const Exception& e)
str = new char[strlen(e.str) + 1]; {
strcpy(str, e.str); str = new char[strlen(e.str) + 1];
} strcpy_s(str, strlen(e.str) + 1, e.str);
~Exception() }
{ ~Exception()
delete[] str; {
} delete[] str;
// Функцию вывода можно будет переопределить в производных }
// классах, когда будет ясна конкретика
virtual void print() virtual void print()
{ {
cout << "Exception: " << str; cout << "Exception: " << str<< "; "<<what();
} }
}; };*/
class BaseMatrix class Exception : public exception
{ {
protected: protected:
double** ptr; char* str;
int height; public:
int width; Exception(const char* s)
{
public: str = new char[strlen(s) + 1];
BaseMatrix(int Height = 2, int Width = 2) strcpy_s(str, strlen(s) + 1, s);
{ }
if (Height <= 0 || Width <= 0) Exception(const Exception& e)
throw Exception("Non-positive size of matrix"); {
height = Height; str = new char[strlen(e.str) + 1];
width = Width; strcpy_s(str, strlen(e.str) + 1, e.str);
ptr = new double*[height]; }
for (int i = 0; i < height; i++) ~Exception()
ptr[i] = new double[width]; {
} delete[] str;
}
BaseMatrix(const BaseMatrix& M) : height(M.height), width(M.width)
{ virtual void print()
ptr = new double*[height]; {
for (int i = 0; i < height; i++) cout << "Exception: " << str << "; " << what();
{ }
ptr[i] = new double[width]; };
for (int j = 0; j < width; j++) class InvalidOperationException : public Exception {
ptr[i][j] = M.ptr[i][j]; public:
} InvalidOperationException(const char* s) : Exception(s) {}
} virtual void print()
{
BaseMatrix(double** arr, int Height, int Width) : height(Height), width(Width) cout << "InvalidOperationException: " << str << "; " << what();
{ }
ptr = new double*[height]; };
for (int i = 0; i < height; i++)
{
ptr[i] = new double[width]; class WrongSizeException : public Exception
for (int j = 0; j < width; j++) {
ptr[i][j] = arr[i][j]; protected:
} int Row1, Col1, Row2, Col2;
} public:
WrongSizeException(const char* s, int row1, int col1, int row2, int col2) : Exception(s) { Row1 = row1; Col1 = col1; Row2 = row2; Col2 = col2; }
~BaseMatrix() virtual void print()
{ {
if (ptr != NULL) cout << "WrongSizeException: " << str << "; " << Row1 << ", " << Col1 << ", " << Row2 << ", " << Col2 << "; " << what();
{ }
for (int i = 0; i < height; i++) };
delete[] ptr[i];
delete[] ptr; class IndexOutOfBoundsException : public Exception
ptr = NULL; {
} protected:
} int Row, Col;
public:
void print() IndexOutOfBoundsException(const char* s, int row, int col) : Exception(s) { Row = row; Col = col; }
{ virtual void print()
for (int i = 0; i < height; i++) {
{ cout << "IndexOutOfBoundsException: " << str << "; " << Row << ", " << Col << "; " << what();
for (int j = 0; j < width; j++) }
cout << ptr[i][j] << " "; };
cout << "\n"; class NonPositiveSizeException : public WrongSizeException {
} public:
} NonPositiveSizeException(const char* s, int row1, int col1, int row2, int col2) : WrongSizeException(s, row1, col1, row2, col2) {}
double& operator()(int row, int column) virtual void print()
{ {
if (row < 0 || column < 0 || row >= height || column >= width) cout << "NonPositiveSizeException: " << str << "; " << Row1 << ", " << Col1 << ", " << Row2 << ", " << Col2 << "; " << what();
throw Exception("Index is out of bounds"); }
return ptr[row][column]; };
}
class TooLargeSizeException : public WrongSizeException {
BaseMatrix& operator=(const BaseMatrix& other) public:
{ TooLargeSizeException(const char* s, int row1, int col1, int row2, int col2) : WrongSizeException(s, row1, col1, row2, col2) {}
if (this != &other)
{ virtual void print()
for (int i = 0; i < height; i++) {
delete[] ptr[i]; cout << "TooLargeSizeException: " << str << "; " << Row1 << ", " << Col1 << ", " << Row2 << ", " << Col2 << "; " << what();
delete[] ptr; }
};
height = other.height;
width = other.width; template<class T>
class BaseMatrix
ptr = new double*[height]; {
for (int i = 0; i < height; i++) protected:
{ T** ptr;
ptr[i] = new double[width]; int height;
for (int j = 0; j < width; j++) int width;
ptr[i][j] = other.ptr[i][j]; public:
} BaseMatrix(int Height = 2, int Width = 2)
} {
return *this; if (Height <= 0 || Width <= 0) {
} throw NonPositiveSizeException("Attempt to create a matrix of negative or zero size", Height, Width, -1, -1);
}
friend ostream& operator<<(ostream& ustream, BaseMatrix obj); height = Height;
friend istream& operator>>(istream& ustream, BaseMatrix& obj); width = Width;
}; ptr = new T* [height];
for (int i = 0; i < height; i++)
ostream& operator<<(ostream& ustream, BaseMatrix obj) ptr[i] = new T[width];
{ }
if (typeid(ustream).name() == typeid(ofstream).name())
{ BaseMatrix(const BaseMatrix& M)
ustream << obj.height << " " << obj.width << "\n"; {
for (int i = 0; i < obj.height; i++) height = M.height;
{ width = M.width;
for (int j = 0; j < obj.width; j++) ptr = new T* [height];
ustream << obj.ptr[i][j] << "\n"; for (int i = 0; i < height; i++)
} {
return ustream; ptr[i] = new T[width];
} for (int j = 0; j < width; j++)
for (int i = 0; i < obj.height; i++) ptr[i][j] = M.ptr[i][j];
{ }
for (int j = 0; j < obj.width; j++) }
ustream << obj.ptr[i][j] << " ";
ustream << "\n"; BaseMatrix operator=(BaseMatrix& V)
} {
return ustream; if (height != V.height && width != V.width)
} {
if (ptr != NULL)
istream& operator>>(istream& ustream, BaseMatrix& obj) {
{ for (int i = 0; i < height; i++)
if (typeid(ustream) == typeid(ifstream)) delete[] ptr[i];
ustream >> obj.height >> obj.width; delete[] ptr;
for (int i = 0; i < obj.height; i++) ptr = NULL;
for (int j = 0; j < obj.width; j++) }
ustream >> obj.ptr[i][j]; height = V.height;
return ustream; width = V.width;
} ptr = new double* [height];
for (int i = 0; i < height; i++)
class MultidimensionalArray : public BaseMatrix ptr[i] = new double[width];
{ }
public: for (int i = 0; i < height; i++)
MultidimensionalArray(int Height = 2, int Width = 2) : BaseMatrix(Height, Width) {} for (int j = 0; j < width; j++)
ptr[i][j] = V.ptr[i][j];
MultidimensionalArray(const MultidimensionalArray& M) : BaseMatrix(M) {} return *this;
}
MultidimensionalArray(double** arr, int Height, int Width) : BaseMatrix(arr, Height, Width) {}
~BaseMatrix()
MultidimensionalArray& operator=(const MultidimensionalArray& other) {
{ if (ptr != NULL)
BaseMatrix::operator=(other); {
return *this; for (int i = 0; i < height; i++)
} delete[] ptr[i];
delete[] ptr;
pair<double, double> calculateCenterOfMass() ptr = NULL;
{ }
double totalMass = 0.0; }
double weightedSumX = 0.0;
double weightedSumY = 0.0; void print()
{
for (int i = 0; i < height; ++i) for (int i = 0; i < height; i++)
{ {
for (int j = 0; j < width; ++j) for (int j = 0; j < width; j++)
{ cout << ptr[i][j] << " ";
double mass = ptr[i][j]; cout << "\n";
totalMass += mass; }
weightedSumX += j * mass; // умножаем координату на массу }
weightedSumY += i * mass; // умножаем координату на массу
} double& operator()(int row, int col)
} {
if (row < 0 || col < 0 || row >= height || col >= width)
if (totalMass == 0.0) throw IndexOutOfBoundsException("IndexOutOfBoundsException in operator()", row, col);
{ return ptr[row][col];
return make_pair(-1.0, -1.0); // Или другое значение по умолчанию }
} };
template <class T>
double centerX = weightedSumX / totalMass; class Matrix : public BaseMatrix<T>
double centerY = weightedSumY / totalMass; {
public:
return make_pair(centerX, centerY); using BaseMatrix<T>::ptr;
} using BaseMatrix<T>::height;
}; using BaseMatrix<T>::width;
Matrix(int Height = 2, int Width = 2) : BaseMatrix<T>(Height, Width) { cout << "\nMatrix constructor\n"; }
int main() ~Matrix() { cout << "\nMatrix destructor\n"; }
{ Matrix(T** array, int Height, int Width) : BaseMatrix<T>(Height, Width) {
try ptr = new T* [height];
{ for (int i = 0; i < height; ++i) {
MultidimensionalArray Wrong(-2, 0); ptr[i] = new T[width];
} for (int j = 0; j < width; ++j) {
catch (Exception e) ptr[i][j] = array[i][j];
{ }
cout << "\nException has been caught: "; }
e.print(); }
} // Filling a matrix element by the sum of its indices
void fillRandom(int a) {
cout << "\n"; // Initialization of random number generator with current time
srand(time(nullptr));
MultidimensionalArray M;
cin >> M; for (int i = 0; i < height; ++i) {
for (int j = 0; j < width; ++j) {
ofstream fout("out.txt"); // Random number generation
if (fout.is_open()) ptr[i][j] = (rand() * (a + 1))%100;
{ }
fout << M; }
fout.close(); }
}
ifstream fin("out.txt"); pair<double, double> calculateCenterOfMass() {
MultidimensionalArray M1; double totalMass = 0;
if (fin) double centerX = 0;
{ double centerY = 0;
fin >> M1;
fin.close(); for (int i = 0; i < this->height; ++i) {
} for (int j = 0; j < this->width; ++j) {
totalMass += this->ptr[i][j];
cout << M1; centerX += i * this->ptr[i][j];
centerY += j * this->ptr[i][j];
char c1; }
cin >> c1; }
if (totalMass != 0) {
return 0; centerX /= totalMass;
} centerY /= totalMass;
}
return make_pair(centerX, centerY);
}
double Trace()
{
if (height != width) {
throw InvalidOperationException("The operation of finding the trace is not defined for a non-square matrix");
}
double summ = 0;
for (int i = 0; i < height; i++)
summ += ptr[i][i];
return summ;
}
Matrix operator+(Matrix M)
{
if (height != M.height || width != M.width)
throw WrongSizeException("Unequal size of matrices to add in operator+()", height, width, M.height, M.width);
Matrix res(height, width);
for (int i = 0; i < height; i++)
for (int j = 0; j < width; j++)
res(i, j) = ptr[i][j] + M.ptr[i][j];
return res;
}
// Перегрузка оператора присваивания
Matrix& operator=(const Matrix& other) {
if (this != &other) {
this->~Matrix();
height = other.height;
width = other.width;
ptr = new double* [height];
for (int i = 0; i < height; ++i) {
ptr[i] = new double[width];
for (int j = 0; j < width; ++j) {
ptr[i][j] = other.ptr[i][j];
}
}
}
return *this;
}
template<class T>
friend ostream& operator<<(ostream& s, Matrix<T> M);
template<class T>
friend istream& operator>>(istream& s, Matrix<T>& M);
};
template<class T>
ostream& operator<<(ostream& s, Matrix<T> M)
{
if (typeid(s) == typeid(ofstream))
{
s << M.height << " " << M.width << " ";
for (int i = 0; i < M.height; i++)
for (int j = 0; j < M.width; j++)
s << M.ptr[i][j] << " ";
return s;
}
for (int i = 0; i < M.height; i++)
{
for (int j = 0; j < M.width; j++)
s << M.ptr[i][j] << " ";
s << "\n";
}
return s;
}
template<class T>
istream& operator>>(istream& s, Matrix<T>& M)
{
if (typeid(s) == typeid(ifstream))
{
int w, h; s >> h >> w;
if (h != M.height || w != M.width)
{
throw InvalidOperationException("The dimensions of the read matrix are different from those of the original matrix.");
}
}
for (int i = 0; i < M.height; i++)
for (int j = 0; j < M.width; j++)
s >> M.ptr[i][j];
return s;
}
int main() {
try {
Matrix<double> M[10];
// Matrix filling and output
for (int i = 0; i < 3; i++) {
cout << "Matrix " << i + 1 << ":" << endl;
M[i].fillRandom(i);
cout << M[i] << endl;
}
// Saving a matrix array to a file
ofstream fout("1.txt");
if (fout) {
fout << "3\n";
for (int i = 0; i < 3; i++)
fout << M[i] << "\n";
fout.close();
}
// reading a matrix array from a file
Matrix<double>* M1;
ifstream fin("1.txt");
if (fin) {
int n;
fin >> n;
M1 = new Matrix<double>[n];
for (int i = 0; i < 3; i++) {
fin >> M1[i];
cout << "Matrix from file " << i + 1 << ":" << endl;
cout << M1[i] << endl;
}
delete[] M1;
}
Matrix<double> A(2, 2);
A.fillRandom(4);
A.print();
Matrix<double> B(2, 2);
B.fillRandom(3);
B.print();
Matrix<double> C = A + B; // matrix1+matrix2
cout << "A + B:" << endl << C << endl;
Matrix<double> D;
D = A; //Assignment of matrix
cout << "D (assigned from A):" << endl << D << endl;
double a, b;
A.print();
tie(a,b)=A.calculateCenterOfMass(); //calculate Center Of Mass
cout << "Center of Mass of A:" << endl;
cout << a << ", " << b << "\n";
double traceA = A.Trace(); // calculate trace
cout << "Trace of A: " << traceA << endl;
}
catch (IndexOutOfBoundsException& ex) {
cout << "IndexOutOfBoundsException has been caught: ";
ex.print();
}
catch (Exception& ex) {
cout << "Exception has been caught: ";
ex.print();
}
catch (exception& ex) {
cout << "Standard exception has been caught: " << ex.what();
}
// char c;
// cin >> c;
return 0;
}