// Solidity program to demonstrate
// the above approach
pragma solidity ^0.6.8;
contract DynamicArray{
	
// Declaring state variable
int[] private arr;
	
// Function to add data
// in dynamic array
function addData(int num) public
{
arr.push(num);
}
	
// Function to get data of
// dynamic array
function getData() public view returns(int[] memory)
{
return arr;
}
	
// Function to return length
// of dynamic array
function getLength() public view returns (uint)
{
return arr.length;
}

// Function to return sum of
// elements of dynamic array
function getSum() public view returns(int)
{
uint i;
int sum = 0;
	
for(i = 0; i < arr.length; i++)
	sum = sum + arr[i];
return sum;
}
	
// Function to search an
// element in dynamic array
function search(int num) public view returns(bool)
{
uint i;
	
for(i = 0; i < arr.length; i++)
{
	if(arr[i] == num)
	{
	return true;
	}
}
	
if(i >= arr.length)
	return false;
}
}