如何在c++中返回不同大小的矩阵数组？

int** createMatrix(int rows, int cols) {
    int** matrix = new int*[rows];
    for (int i = 0; i < rows; i++) {
        matrix[i] = new int[cols];
    }
    return matrix;
}

#include <iostream>

int** createMatrix(int rows, int cols) {
    int** matrix = new int*[rows];
    for (int i = 0; i < rows; i++) {
        matrix[i] = new int[cols];
    }
    return matrix;
}

void printMatrix(int** matrix, int rows, int cols) {
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            std::cout << matrix[i][j] << " ";
        }
        std::cout << std::endl;
    }
}

void deleteMatrix(int** matrix, int rows) {
    for (int i = 0; i < rows; i++) {
        delete[] matrix[i];
    }
    delete[] matrix;
}

int main() {
    int** matrix1 = createMatrix(2, 3);
    matrix1[0][0] = 1;
    matrix1[0][1] = 2;
    matrix1[0][2] = 3;
    matrix1[1][0] = 4;
    matrix1[1][1] = 5;
    matrix1[1][2] = 6;

    int** matrix2 = createMatrix(3, 2);
    matrix2[0][0] = 1;
    matrix2[0][1] = 2;
    matrix2[1][0] = 3;
    matrix2[1][1] = 4;
    matrix2[2][0] = 5;
    matrix2[2][1] = 6;

    std::cout << "Matrix 1:" << std::endl;
    printMatrix(matrix1, 2, 3);

    std::cout << "Matrix 2:" << std::endl;
    printMatrix(matrix2, 3, 2);

    deleteMatrix(matrix1, 2);
    deleteMatrix(matrix2, 3);

    return 0;
}