Converting 2 dimemsional array to 3 dimensional array and vice versa in c++

Introduction

This article discusses about the Two Dimensional To Three Dimensional conversion and vice versa in c++

The following program converts two dimensional array to three dimensional array using TwoDimToThree() and converts three dimensional array to two dimensional array ussing ThreeDimToTwo() .

Code:

#include<iostream>

using namespace std;

void TwoDimToThree();

void ThreeDimToTwo();

main()
{

	cout<<"If u want to convert 2d array to 3d array enter 1 "<<endl;

	cout<<endl<<"If u want to convert 3d array to 2d array enter 2 "<<endl;

	int n;

	cin>>n;

	if(n==1)
		TwoDimToThree();

	else
		ThreeDimToTwo();

}
void TwoDimToThree()
{

	cout<<"Enter the no. of rows and column for 2d array "<<endl;

	int Row,Col;

	cin>>Row>>Col;

	cout<<"Enter "<<Row*Col<<" elements for the 2d array"<<endl;

	int i,j,k,a[Row][Col],b[Row][Row][Col];

	for(i=0;i<Row;i++)
		for(j=0;j<Col;j++)
			cin>>a[i][j];

	cout<<"The elements of 2d array are "<<endl;
	for(i=0;i<Row;i++)
		for(j=0;j<Col;j++)
			cout<<"a["<<i<<"]["<<j<<"] = "<<a[i][j]<<endl;

	cout<<"The elements of 3d array are "<<endl;
	for(i=0;i<Row;i++)
	{
		for(j=0;j<Row;j++)
			for(j=0;j<Row;j++)
			{
				for(k=0;k<Col;k++)
				{
					b[i][j][k]=a[j][k];
					cout<<"b["<<i<<"]["<<j<<"]["<<k<<"] = "<<b[i][j][k]<<endl;
				}
			}
	}

}

void ThreeDimToTwo()
{

	cout<<"Enter the no. of rows , column , length of 3d array "<<endl;

	int Row,Col,Len;

	cin>>Row>>Col>>Len;

	cout<<"Enter "<<(Row*Col)*Len<<" elements"<<endl;

	int a[Row][Col][Len],b[Row][Row*Col];

	int i,j,k;
	for(i=0;i<Row;i++)
		for(j=0;j<Col;j++)
			for(k=0;k<Len;k++)
				cin>>a[i][j][k];

	int l=0,m=0,p;

	cout<<"Elements of the three dimensional array are "<<endl;
	for(i=0;i<Row;i++)
	{
		for(j=0;j<Col;j++)
		{
			for(k=0;k<Len;k++)
			{
				b[l][m]=a[i][j][k];
				cout<<"a["<<i<<"]["<<j<<"]["<<k<<"] = "<<a[i][j][k]<<endl;
				m++;
				p=m;
			}
		}
		m=0,l++;
	}

	cout<<endl<<"Elements of two dimensional array are "<<endl;

	for(i=0;i<l;i++)
	{
		for(j=0;j<p;j++)
			cout<<"b["<<i<<"]["<<j<<"] = "<<b[i][j]<<endl;
	}

}