Pergunta de entrevista da empresa Nagarro

Technical Interview Questions: 1.Reverse a string like Sachin Tendulkar to Tendulkar Sachin. time complexity and space complexity. 2.Given a random string you have to think an algorithm it can return the sting can be rearrange to became palindrome or not. 3.What is Hashmap? and the time complexity. 4.What is Collisions in the HashMap? 5.If you are creating a Facebook Dummy which data structure will you use? 6.If you are creating Ludo which Data Structure will you use?