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# Adobe Placement Paper

 Paper Type : Technical - C & C++ Adope placement paper The test predominantly consists of algorithm questions and a lot of questions on trees. Some questions are: C test: Q1) linked list using recursion. Q2) Find if a number is divisible my 3, without using %,/ or *. You can use atoi(). Q3) 2 integers A and B are given, find the no of bits that need to be flipped in A to get B. ( xor a and b and count the number of bits) Q4) Write a Rotate function for rotating elements in an array, using a reverse function. Q5) Given 2 sorted arrays A and B with duplicate elements, get C= A -B and does not have duplicates(use a variation of merging 2 arrays and then remove the duplicates.) Q6) Some routines to swap int pointers. Q7) Subtraction of 2 base 13 numbers. Q8) Min and max nodes of a quad tree. Q9) Prove that in a tree no of internal nodes is one less than leaves. Q10) A couple of boolean logic proofs Q11) Code to see if a binary tree is a BST or not. Q12) Switch case program out put Engineering test: Most of it had algorithms( no code) Q1) Given an array with some repeating numbers. Like 12,6,5,12,6 output: 12,12,6,6,5 12 shud come before 6 since it is earlier in list. So cant use a dictionary. Q2) Implement a dictionary manually with a lil overhead. Q3)finding nth element from end in a list Q4)inserting an element into a sorted linked list. In the anal part many questions were based on the rule that square root of 25 is +5/-5. Not just 5. Similarly for 1. Geometry the questions were a lil bit tricky, but they are few that u can ignore them.

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