C++ STL – Vector

Programming Contests require us to solve coding problems as FAST as possible.  To achieve speed we should have pre-coded data structures ready with us, so that we can save time by using them at the time of Contest.  In return we get more time to come up with algorithm, code the solution, test and debug the solution.  STL…

Data Structure – Linked List

What is importance of Linked List? This question is no different than asking ourselves – “If there are buses to transport people from one place to another, Why do we need trains?” I’m sure everyone has a convincing answer about importance of trains because we’ve grown up using buses and trains. While trains can carry…