20+ DP World Interview Questions and Answers

You are given a non-decreasing array and an integer K. You need to remove exactly K integers from the given array such that the maximum diff...read more

Stark Industry is planning to organize Stark Expo, for which various departments have to organize meetings to check their preparations. Since Stark Tower has limited rooms available for the meeting, ...read more

You are given an integer 'X' and your task is to find an integer 'Y' such that the bitwise XOR of the integers 'X' and 'Y' give the maximum possible value. T...read more

You are given a sorted array 'ARR' and a number 'X'. Your task is to count the number of occurrences of 'X' in 'ARR'.

Note :

1. If 'X' is not found in the array, return 0. 2. The give...read more

You are given two strings A and B. Find the index of the first occurrence of A in B. If A is not present in B, then return -1.

For Example:

A = “bc”, B = “abcddbc”. String “A” is present at i...read more

You are given an array ‘arr’ of ‘N’ distinct integers. Your task is to print all the non-empty subsets of the array.

Note: elements inside each subset should be sorted in increasing order. But ...read more

Given a linked list having two pointers in each node. The first one points to the next node of the list, however, the other pointer is random and can point to any node of th...read more

You have been given string 'S' of length 'N' that may contain duplicate alphabets. Your task is to return the count of distinct subsequences of it.

For example:

For the given string “deed” ...read more

Aahad and Harshit always have fun by solving problems. Harshit took a sorted array and rotated it clockwise by an unknown amount. For example, he took a sorted array = [1, 2, 3, 4,...read more

You have been given a grid containing some oranges. Each cell of this grid has one of the three integers values:

Value 0 - representing an empty cell.

Value 1 - representing a fresh orange.

...read more

You have an e-commerce website. You have to find the closest warehouse to the customer's address. How would you index your database based on latitude and longitude to find the closest warehouse?

You are given a connected undirected unweighted graph of ‘N’ nodes and ‘M’ edges, such that there is only one undirected edge between any two nodes and no self-loop. Your task is to find ...read more

You are given a 2D matrix (containing either ‘0’ or ‘1’) of size N x M, where each row is in sorted order. Find the 0-based index of the first row that has the maximum number of...read more

100 people are standing in a row numbered from 1 - 100. First-person is given a gun. First-person shoots the second person and passes the gun to the third person. The cycle continues and 99th p...read more

Given 3 Strings, check whether the 3rd string contains all the characters of string 1 and 2 in any order. If all the characters are present, print "YES" otherwise print "NO".

There should not be ...read more

Two Questions: -

1. How would you optimize a database?
2. Difference between Relational vs NoSQL.

You have a large database(100s of TB).Now you have to apply some formatting to it and copy it to another database.
How would you do it?

Design a card game. OOD was required in this question.

Few questions on OOPs mainly focussing on private inheritance, destructors, virtual functions, and dynamic polymorphism

Create a system for the management of parking. Vehicle type includes Bus, Car, Bikes and Cycles.