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Working with UDP DatagramSockets in Java

DatagramSockets are Java’s mechanism for network communication via UDP instead of TCP. Java provides DatagramSocket to communicate over UDP instead of TCP. It is also… Read More

Java-Networking

Java

Sort an array of large numbers

Given an array of numbers where every number is represented as string. The numbers may be very large (may not fit in long long int),… Read More

large-numbers

DSA

Sorting

K difference permutation

Given two integers n and k. Consider first permutation of natural n numbers, P = “1 2 3 … n”, print a permutation “Result” such… Read More

permutation

Combinatorial

DSA

Difference of two large numbers

Given two numbers as strings. The numbers may be very large (may not fit in long long int), the task is to find the difference… Read More

large-numbers

DSA

Mathematical

Strings

ClearTrip Interview Experience | Set 1 (For Software Developer)

1st Round (Online coding round) 2 Questions 1) Standard DP problem. 2) I don’t remember it completely. It was a recursive problem with strings. 2nd… Read More

ClearTrip

Experiences

Interview Experiences

Maximum edge removal from tree to make even forest

Given an undirected tree which has even number of vertices, we need to remove the maximum number of edges from this tree such that each… Read More

DFS

DSA

Tree

Simple Calculator using TCP in Java

Prerequisite: Socket Programming in Java Networking just doesn’t conclude with a one-way communication between the client and server. For example consider a time telling server… Read More

Java

Number of decisions to reach destination

Given a grid which consists of 4 types of characters : ‘B’ ‘.’ ‘S’ and ‘D’. We need to reach D starting from S, at… Read More

DSA

Graph

Count of strings that can be formed using a, b and c under given constraints

Given a length n, count the number of strings of length n that can be made using ‘a’, ‘b’ and ‘c’ with at most one… Read More

Google

DSA

Dynamic Programming

Strings

Morgan Stanley Interview | Set 27 (For 2.5 Years Experienced)

Morgan Stanley had hiring drive where around 150 people came for interview. First Round:(Coding Round)-45 Minutes Here we have to code 2 problems 1) first… Read More

Morgan Stanley

Experienced

Experiences

Interview Experiences

Delete Edge to minimize subtree sum difference

Given an undirected tree whose each node is associated with a weight. We need to delete an edge in such a way that difference between… Read More

DSA

Tree

N’th palindrome of K digits

Given two integers n and k, Find the lexicographical nth palindrome of k digits.Examples: Input : n = 5, k = 4 Output : 1441… Read More

palindrome

DSA

Mathematical

Largest divisible subset in array

Given an array the task is to largest divisible subset in array. A subset is called divisible if for every pair (x, y) in subset,… Read More

subset

Arrays

DSA

Maximum value in an array after m range increment operations

Consider an array of size n with all initial values as 0. We need to perform the following m range increment operations. increment(a, b, k)… Read More

FactSet

Arrays

DSA

Mathematical

Amazon Interview experience | Set 331 (1 Year Experienced for SE-1)

A big big thanks to geeks for geeks for constructing this platform where candidates find suitable question sets. 1. 1st Round (Coding round on hacker… Read More

Amazon

Experienced

Experiences

Interview Experiences

Make largest palindrome by changing at most K-digits

Given a string containing all digits, we need to convert this string to a palindrome by changing at most K digits. If many solutions are… Read More

Microsoft

palindrome

DSA

Misc

Strings

Output of Java programs | Set 10 (Garbage Collection)

Prerequisite – Garbage Collection in Java Difficulty level : Intermediate In Java, object destruction is taken care by the Garbage Collector module and the objects… Read More

java-garbage-collection

Java-Output

Java

Program Output

Rearrange characters in a String such that no two adjacent characters are same

Given a string with lowercase repeated characters, the task is to rearrange characters in a string so that no two adjacent characters are the same.… Read More

Amazon

STL

DSA

Greedy

Heap

Strings

Highway Billboard Problem

Consider a highway of M miles. The task is to place billboards on the highway such that revenue is maximized. The possible sites for billboards… Read More

DSA

Dynamic Programming

Paytm Interview Experience | Set 13 (For Experienced)

1st Round : Machine Coding Round It was machine coding round having two coding questions. Based on tree. (Solved using Brute force, didn’t pass all… Read More

Paytm

Arrays

DSA

Experienced

Experiences

Interview Experiences

Linked List