Added bubble sort algorithm in C++

SORTING/C++/bubble_sort.cpp

@@ -0,0 +1,33 @@
+//bubble sort 
+# include <iostream>
+using namespace std;
+
+int main()
+{
+	cout<<"Enter the length of array"<<endl;
+	int m, temp,n;
+	cin>>n;
+	int arr[n];
+	cout<<"Enter the elements of array"<<endl;
+	for (int i = 0; i < n; i++)
+	{    //array elements input
+		cin>>arr[i];
+	}
+	for (int i = 0; i < n; i++)
+	{
+		for (int j= 0; j< n-1; j++)
+		{    //comparing adjecent elements of array
+			if (arr[j]>arr[j+1])
+			{   // swaping array elements
+				temp = arr[j];
+				arr[j] = arr[j+1];
+				arr[j+1] = temp;
+			}
+		}
+	}
+	for (int i = 0; i < n; ++i)
+	{
+		cout<<arr[i]<<" ";
+	}
+	return 0;
+}