Maximum difference between first and last indexes of an element in array

Suppose, you have an array of integers. The problem “Maximum difference between first and last indexes of an element in array” asks to find out the difference between the first and last index of each number present in an array such that the difference is being maximum of all. Example   …

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Boundary Traversal of binary tree

Problem Statement   The problem “Boundary Traversal of binary tree” states that you are given a binary tree. Now you need to print the boundary view of a binary tree. Here boundary traversal means that all the nodes are shown as the boundary of the tree. The nodes are seen from …

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Print Fibonacci sequence using 2 variables

Problem Statement   The problem “Print Fibonacci sequence using 2 variables” states that you need to print the Fibonacci sequence but there is a limitation of using only 2 variables. Example   n = 5 0 1 1 2 3 5 Explanation The output sequence has the first five elements of the …

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