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We are trying to list out the most frequently asked interview problems or the problem given in the coding rounds of IT giants.

questions

Title
You are given two prime numbers n and m of 4 digits each, you need to convert n into m in the minimum number of steps, in each step you can change one of the digits of the number n such that a resulting number is also a prime number
Given a matrix of dimension r*c where each cell in the matrix can have values 0, 1 or 2 which has the following meaning: 0 : Empty cell 1 : Cells have fresh oranges 2 : Cells have rotten oranges
Given a sorted dictionary (array of words) of an alien language, find order of characters in the language
A group of connected 1\'s forms an island. There is a matrix of N×M. You have to find out the numbers of item
Given a graph G. you have to find out that that graph is Hamiltonian or not
There is a chessboard of size N×M and starting position (sx, sy) and destination position (dx,dy). You have to find out how many minimum numbers of moves a knight goes to that destination position?
Given a weighted directed graph, the problem is to find the shortest distances between every pair of vertices. The Graph is represented by an adjacency matrix, and any cell arr[i][j] denotes the weight of the edge (path cost) from node i to node j (if it exists) else INF
Given a weighted undirected graph. Find the sum of weights of edges of a Minimum Spanning Tree
total questions: 8

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