What will be the output of the below C# code?
protected void btn_click(object sender,eventargs e)
{
int cnt = 50;
MessageBox.Show(cnt.ToString());
if (cnt == 50)
{
int cnt = 10;
MessageBox.Show(cnt.ToString());
}
MessageBox.Show(cnt.ToString());
}

It will not compile actually,and say that Same variable cannot be declared more than once in C#.It will say that "A local variable named 'cnt' cannot be declared in this scope because it would give a different meaning to 'cnt', which is already used in a 'parent or current' scope to denote something else".
So to overcome this,we must declare different variables and store values.