Write a C++ program to create dynamic integer array, and sort them in ascending order, using new and delete operators.

Aug 15, 2018

The following program is tested with gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3). 

 

// program to allocate memory for the 
//one dimentional array and sort them in ascending order
// using c++ new and delete operators

#include<iostream>
using namespace std;
int main(){
	int *arr_pointer; //pointer variable for holding the array address
	int NUMBER;
	cout<<"Enter Number of terms:"<<endl;
	cin>>NUMBER;
	arr_pointer = new int[NUMBER]; //allocating memory for Total array elements

	cout<<"Enter the elements of array:"<<endl;
	for (int i = 0; i < NUMBER; i++)
	{
		cin>>*(arr_pointer + i); //using pointer notation
	}

	//looping that sorts the array elements in ascending order
	for (int i = 0; i < NUMBER; i++)
	{
		for (int j = i + 1; j < NUMBER; j++)
		{
			if (*(arr_pointer + i) > *(arr_pointer + j))
			{
				int temp;
				temp = *(arr_pointer + i);
				*(arr_pointer + i) = *(arr_pointer + j);
				*(arr_pointer + j) = temp;
			}
		}
	}

	cout<<"Sorted array is :"<<endl;
	for (int i = 0; i < NUMBER; i++)
	{
		cout<<*(arr_pointer + i)<<", "; 
	}
	cout<<endl;	
	//de-allocating the memory allocated
	delete [] arr_pointer;

	return 0;
}

 

SAMPLE RUN :

Enter Number of terms:
12
Enter the elements of array:
2
4
6
3
2
1
8
9
50
34
56
66
Sorted array is :
1, 2, 2, 3, 4, 6, 8, 9, 34, 50, 56, 66, 

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