[C/C++][動態二維陣列的使用]

/*
* File Name: Dynamic2DimentionalArray.cpp
* Author: MH
* Since 2013/03/03
* Toolkit: Dev C++ 4.9.9.9
*/

#include <iostream>

using namespace std;

int main(){

    int r, c, **p, i, j;

    cout << "enter the row: ";
    cin >> r;
    cout << "enter the column: ";
    cin >> c;
    cout << endl;

    p = new int *[r];    // generating rows
    for (i=0; i<r; i++)    // generating columns
        p[i] = new int[c];    // Not new int *[c]!!

    for (i=0; i<r; i++)    // accessing: assigning values
        for (j=0; j<c; j++)
            p[i][j] = i;

    for (i=0; i<r; i++){    // accessing: printing values
        for (j=0; j<c; j++)
            cout << p[i][j] << " ";
        cout << endl;
    }

    for (i=0; i<r; i++)    // deallocate the memory
        delete []p[i];    // delete columns
    delete []p;

    return 0;
}