## Number of shortest paths in an unweighted and directed graph

Given an unweighted directed graph, can be cyclic or acyclic. Print the number of shortest paths from a given vertex to each of the vertices.… Read More »

Given an unweighted directed graph, can be cyclic or acyclic. Print the number of shortest paths from a given vertex to each of the vertices.… Read More »

Given a unweighted graph, a source and a destination, we need to find shortest path from source to destination in the graph in most optimal… Read More »

We are given an integer N. We need to write a program to find the least positive integer X made up of only digits 9’s… Read More »

Breadth-first search traversal of a graph using the algorithm given in CLRS book. BFS is one of the ways to traverse a graph. It is… Read More »

BFS(Breadth First Search) is a graph traversal technique where a node and its neighbors are visited first and then the neighbors of neighbors. In simple… Read More »

Round 1: The first round consisted of two coding questions to be solved in 1 hr – Given a binary tree, print the boundary of… Read More »

Given a tree represented as undirected graph. Count the number of nodes at given level l. It may be assumed that vertex 0 is root… Read More »

I applied through an employee referral for SDET-1 position. I was interviewed at Amazon Chennai(SP Infocity).I faced 5 face to face rounds. On October 11th,… Read More »

Given two four digit prime numbers, suppose 1033 and 8179, we need to find the shortest path from 1033 to 8179 by altering only single… Read More »

Pablo has square chocolate Box of size n x n in which a variety of healthy chocolates are present denoted by ‘H’ initially but he… Read More »

N-ary tree refers to the rooted tree in which each node having atmost k child nodes. The diameter of n-ary tree is the longest path… Read More »

You are given a m litre jug and a n litre jug . Both the jugs are initially empty. The jugs don’t have markings to… Read More »

A STL based simple implementation of BFS using queue and vector in STL. The adjacency list is represented using vectors of vector. In BFS, we… Read More »

Given a directory, print all files and folders present in directory tree rooted with given directory. We can iteratively traverse directory in BFS using below… Read More »

Suppose A is at position (0, 0) of a 2-D grid containing ‘m’ rows and ‘n’ columns. His aim is to reach the bottom right… Read More »