# Amazon interview experience | Set 383 (On-Campus for Internship)

Amazon visited our campus for internship and placement. The Selection Process starts with an online test comprises of 20 technical questions involving data structures,operating system basic concepts,algorithms and aptitude questions and two coding questions.

**First Round Questions**

- Given an array find all sets of size 3 having sum of elements less than a given number k.

GeeksforGeeks Link - Find n-th magic number.

GeeksforGeeks Link

27 out of 150 were selected for the second round.

**Second round questions.**

- given a BST with additional information at each node howmany nodes in its left subtree and right subtree. find the kth largest element in that tree.

GeeksforGeeks Link - merge two sorted linked list.

GeeksforGeeks Link

15 out of 27 got selected.

**3rd round questions.**

- Given two rectangles diagonally opposite coordinates. find whether a rectangle is completely overlapping the other or not.

GeeksforGeeks Link - Given a binary tree create a new tree which is mirror image of that tree.

GeeksforGeeks Link - Given three consecutive even numbers. prove mathematically that atleast one of them is divisible by 6.

GeeksforGeeks Link

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