Backend Developer

You have been given two integers ‘NUM1’ and ‘NUM2’ as a string. Your task is to print the sum of both the numbers.

You are given an array 'arr' of length 'n', consisting of integers.

A subarray is a contiguous segment of an array. In other words, a subarray can be formed by removing 0 or more integers from the beginning and 0 or more integers from the end of an array.

Find the sum of the subarray (including empty subarray) having maximum sum among all subarrays.

The sum of an empty subarray is 0.

Example :

Input: 'arr' = [1, 2, 7, -4, 3, 2, -10, 9, 1]

Output: 11

Explanation: The subarray yielding the maximum sum is [1, 2, 7, -4, 3, 2].

You have been given an integer array/list (ARR) of size N. You have to return an array/list PRODUCT such that PRODUCT[i] is equal to the product of all the elements of ARR except ARR[i]

 Note :

Each product can cross the integer limits, so we should take modulo of the operation. 

Take MOD = 10^9 + 7 to always stay in the limits.

Follow up :

Can you try solving the problem in O(1) space?

You are given an integer array ‘ARR’. You have to find the length of the shortest contiguous subarray such that, if you sort this subarray in ascending order, then the whole array will be sorted in ascending order.

An array 'C' is a subarray of array 'D' if it can be obtained by deletion of several elements(possibly zero) from the beginning and the end from array 'D'.

Example:

Let’s say we have an array 'ARR' {10, 12, 20, 30, 25, 40, 32, 31, 35, 50, 60}. Then we have to find the subarray {30 , 25 , 40 , 32 , 31 , 35} and print its length = 5 as our output. Because, when we sort this subarray the whole array will be sorted.

All of the oops concepts were asked. I was asked to explain all concepts taking real time examples. I was asked questions related to abstract classes and interface. What is a thread. Questions related to stringbuilder and stringbuffer.

Interviewer asked me to write a code for storing data as we do it in database tables. Code should also include primary keys and foreign keys. Some queries were given and asked to write a code for them in order to fetch the data which the query would fetch.