title: How unrolled linked list works
body: <p>Can any one explain me what is unrolled linked list. As per my knowledge its a linked list in which each node have array of elements. And of course this makes the searching faster. </p>
  
  <p><img src="https://i.stack.imgur.com/UsNyB.png" alt=""></p>
  
  <p>In this diagram, adding the data 1,2,3 in that picture is clear, no complications… but why they added 4 in the second node? Why not in the 4th element of first node? what is the benefit of that? And what is the strategy they used there to split?</p>