Application, initial value, use and free space of dynamic two-dimensional array

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According to the dynamic two-dimensional array of applications, the initial value, use, free space five parts of the code to show the reference.

At the same time, a dynamic two-dimensional array is used as an example of formal parameters and arguments, which is convenient for us to search.

#include <iostream>

using namespace Std;

Dynamic two-dimensional array as formal parameter

void Display (int * * &p,int row,int Col)

{

Inti,j;

For (i= 0;i <= row-1;i++)

{

for (j= 0; J <= col-1;j++)

{

cout <<p[i][j]+i+j << "T";

}

cout << Endl;

}

}

Main function

void Main ()

{

-------format output template information content------start------

cout << "The results of the program output are as follows:" << Endl << Endl;

cout << "/***************************/" <<endl;

cout << "/* dynamicarray exemple * *" <<endl;

cout << "/* Tang 2011 Years/day *" << Endl;

cout << "/***************************/" <<endl << Endl;

-------format output template information content------END------

Int**p; This is a pointer to a pointer

Introw,col; This dynamic two-dimensional array is "row row", "Col" column

Inti,j; Cyclic variables

Application of dynamic two-dimensional array p

cout << "Please enter the number of rows and columns:" << endl << Endl;

Cin >> Row >> col;

cout << Endl;

p = newint *[row];

for (int i = 0;i <= row-1;i++)

{

P[i]=new Int[col];

}

To assign an initial value to an element of a dynamic two-dimensional array p

For (i= 0;i <= row-1;i++)

{

for (j= 0; J <= col-1;j++)

{

P[I][J] = 0;

}

}

Examples of the use of dynamic two-dimensional array p

For (i= 0;i <= row-1;i++)

{

for (j= 0; J <= col-1;j++)

{

cout << p[i][j]<< "T";

}

cout << Endl;

}

cout << Endl;

cout << "Output by calling Function:" << Endl << Endl;

Dynamic two-dimensional array p as a parameter

Display (P,ROW,COL);

When you release the resource, delete the elements inside and remove the P

For (i= 0;i <= row-1;i++)

{

Delete[] p[i];

}

Deletep;

-------format output template information content------start------

cout << Endl <<endl;

System ("pause");

-------format output template information content------END------

}

The results of the program output are as follows:

/***************************/

/* DYNAMIC ARRAY exemple * *

* Tang October 14, 2011 * *

/***************************/

Please enter the number of rows and columns:

2

3