Python
Getting GPS EXIF Data with Python
Did you know that you can get EXIF data from JPG image files using the Python programming language? You can use Pillow, the Python Imaging Library’s friendly fork to do so. You can read an Read more…
Python
Get Python 101 2nd Edition FREE for 72 Hours!
Python 101 2nd Edition is the latest version of Python 101. This book is meant to help you learn Python and then go beyond the basics. I’ve always felt that a beginner’s book should teach Read more…
Python
PyDev of the Week: Ken Youens-Clark
This week we welcome Ken Youens-Clark (@kycl4rk) as our PyDev of the Week! He is the author of Tiny Python Projects from Manning. He has done video lectures for each of his chapters on YouTube. Read more…
c++
Maximum Path Sum in a Binary Tree
Given a binary tree, write an efficient algorithm to find the maximum path sum between any two nodes in it. The path can start and end at any node in the tree and need not Read more…
c++
Construction of an expression tree
Construct an expression tree from a given postfix notation and print the infix notation. The binary expression tree is a binary tree whose leaves are operands, such as constants or variable names, and the other Read more…
c++
Find pair with given sum in a circularly sorted array
Given a circularly sorted array of integers, find a pair with a given sum. Assume there are no duplicates in the array, and the rotation is in an anti-clockwise direction around an unknown pivot. For Read more…
c++
Check whether leaf traversal of given binary trees is same or not
Given two binary trees, check whether the leaf traversals of both trees are the same or not. For example, the leaf traversals of the following binary trees are 4, 5, 6. A simple solution is Read more…
c++
Find Intersection Point of two Linked Lists
Given two linked lists, where the tail of the second list points to a node in the first list, find the node where both lists intersect. Consider the following linked lists where the second list’s Read more…
c++
Connect n ropes with minimal cost
Given n ropes of different lengths, connect them into a single rope with minimum cost. Assume that the cost to connect two ropes is the same as the sum of their lengths. For example, The Read more…
c++
Print complete binary search tree in increasing order
Given a level order representation of a complete binary search tree, print its elements in increasing order. For example, the level order representation of the complete BST below is [15, 10, 20, 8, 12, 18, Read more…