the first approach which has been taught using hashmap i am facing problem while implementing the code. how to traverse over the map and set to check whether that element is present in array here is my code https://ide.codingblocks.com/s/301372
the first approach which has been taught using hashmap i am facing problem while implementing the code. how to traverse over the map and set to check whether that element is present in array here is my code https://ide.codingblocks.com/s/301372