如何在C++中删除动态数组的列

#include <iostream>

void deleteColumn(int**& array, int rows, int& cols, int colToDelete) {
    int** newArray = new int*[rows];
    for (int i = 0; i < rows; i++) {
        newArray[i] = new int[cols - 1];
        int newColIndex = 0;
        for (int j = 0; j < cols; j++) {
            if (j != colToDelete) {
                newArray[i][newColIndex] = array[i][j];
                newColIndex++;
            }
        }
    }

    for (int i = 0; i < rows; i++) {
        delete[] array[i];
    }
    delete[] array;

    array = newArray;
    cols--;
}

int main() {
    int rows = 3;
    int cols = 4;

    int** array = new int*[rows];
    for (int i = 0; i < rows; i++) {
        array[i] = new int[cols];
        for (int j = 0; j < cols; j++) {
            array[i][j] = i * cols + j;
        }
    }

    std::cout << "Original Array:" << std::endl;
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            std::cout << array[i][j] << " ";
        }
        std::cout << std::endl;
    }

    int colToDelete = 2;
    deleteColumn(array, rows, cols, colToDelete);

    std::cout << "Array after deleting column " << colToDelete << ":" << std::endl;
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            std::cout << array[i][j] << " ";
        }
        std::cout << std::endl;
    }

    for (int i = 0; i < rows; i++) {
        delete[] array[i];
    }
    delete[] array;

    return 0;
}