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(1) I have a linked list where each node contains a digit. For example, 1->2->4->6->8. Here, 1 is the head and 8 is the tail. This represents the number 12,468. I want to add 1 to this number. Then, the linked list should become 1->2->4->6->9. I

It was a typical phone interview for a general position. The team is not selected until you move on to the next step. This is followed by another phone interview, and then three more interviews.

There was an online assessment followed by coding interviews. The assessments were not that hard; they covered the basic algorithms and standard data structures you will see in most interviews. Grind a question bank, and you should be good.