Remove all duplicates from an integer array without using any additional data structures.
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Check if binary representation of a number is a palindrome, consider all 32 bits. So, 5 would not be a palindrome by this logic. Convert a given binary tree to a mirror tree and then again another question on trees - given the parent pointer of every node, find the leftmost right cousin of given node.
Q. Populating Next Right Pointers in Each Node
You can find the question and the answer to one of the questions asked in the first round here -
Started with reversing the linked list and then did many modifications in that.
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