HA22_1

coloriot

Sep 5th, 2024

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#include <iostream>
using namespace std;
// Задача матрица
class Matrix {
private:
int** matrix;
int rows;
int cols;
public:
Matrix(int new_rows, int new_cols) {
this->rows = new_rows;
this->cols = new_cols;
this->matrix = new int*[new_rows];
for (int i = 0; i < this->rows; ++i) {
matrix[i] = new int[new_cols];
}
for (int i = 0; i < this->rows; ++i) {
for (int j = 0; j < this->cols; ++j) {
matrix[i][j] = 0;
}
}
}
// Конструктор копирования
Matrix(const Matrix& other) {
rows = other.rows;
cols = other.cols;
matrix = new int*[rows];
for (int i = 0; i < rows; ++i) {
matrix[i] = new int[cols];
for (int j = 0; j < cols; ++j) {
matrix[i][j] = other.matrix[i][j];
}
}
}
~Matrix() {
for (int i = 0; i < this->rows; ++i) {
delete[] this->matrix[i];
}
delete[] this->matrix;
}
Matrix operator+ (const Matrix& other) {
if (this->rows == other.rows && this->cols == other.cols) {
Matrix new_matrix(this->rows, this->cols);
for (int i = 0; i < this->rows; ++i) {
for (int j = 0; j < this->cols; ++j) {
new_matrix.matrix[i][j] = this->matrix[i][j] + other.matrix[i][j];
}
}
return new_matrix;
} else {
cout << "Разные размерности!" << endl;
return Matrix(0, 0);
}
}
// Оператор умножения
Matrix operator* (const Matrix& other) {
if (this->cols != other.rows) {
cout << "Разные размерности!" << endl;
return Matrix(0, 0);
}
Matrix result(this->rows, other.cols);
for (int i = 0; i < this->rows; ++i) {
for (int j = 0; j < other.cols; ++j) {
result.matrix[i][j] = 0; // Initialize result element to 0
for (int k = 0; k < this->cols; ++k) {
result.matrix[i][j] += this->matrix[i][k] * other.matrix[k][j];
}
}
}
return result;
}
void print() const {
for (int i = 0; i < this->rows; ++i) {
for (int j = 0; j < this->cols; ++j) {
cout << matrix[i][j] << ' ';
}
cout << '\n';
}
}
};
// Код для проверки
int main() {
Matrix mat1(2, 2);
Matrix mat2(2, 2);
Matrix sum = mat1 + mat2;
sum.print();
return 0;
}

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