Wipro pvt interview experience Real time questions & tips from candidates to crack your interview
Project Engineer
Wipro pvt
2 rounds | 3 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 4 months
Topics: Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic Programming
Tip 1 : Practice daily question of DS algo
Tip 2 : Prepare all your projects
Tip 3 : Daily practice of aptitude
Tip 4 : Practice previous years Company questions
Application process
Where: Campus
Eligibility: No backlog
Tip 1 : Resume should contains only those skills that you know
Tip 2 : Add good projects and add github link to it also
Tip 3 : Resume should not be too long
Interview rounds
01
Round
Easy
Online Coding Interview
Duration120 minutes
Interview date4 Nov 2019
Coding problem2
English 15 Questions MCQs
Aptitude 15 Questions MCQs
2 coding problem
1. Sort An Array of 0s, 1s and 2s
Easy
10m average time
90% success
0/40
Asked in companies
You have been given an array/list 'arr' consisting of 'n' elements.
Each element in the array is either 0, 1 or 2.
Sort this array/list in increasing order.
Do not make a new array/list. Make changes in the given array/list.
Example :
Input: 'arr' = [2, 2, 2, 2, 0, 0, 1, 0]
Output: Final 'arr' = [0, 0, 0, 1, 2, 2, 2, 2]
Explanation: The array is sorted in increasing order.
Problem approach
Approach:
The problem is similar to our old post Segregate 0s and 1s in an array, and both of these problems are variation of famous Dutch national flag problem.
The problem was posed with three colours, here `0′, `1′ and `2′. The array is divided into four sections:
a[1..Lo-1] zeroes (red)
a[Lo..Mid-1] ones (white)
a[Mid..Hi] unknown
a[Hi+1..N] twos (blue)
If the ith element is 0 then swap the element to the low range, thus shrinking the unknown range.
Similarly, if the element is 1 then keep it as it is but shrink the unknown range.
If the element is 2 then swap it with an element in high range.
Algorithm:
Keep three indices low = 1, mid = 1 and high = N and there are four ranges, 1 to low (the range containing 0), low to mid (the range containing 1), mid to high (the range containing unknown elements) and high to N (the range containing 2).
Traverse the array from start to end and mid is less than high. (Loop counter is i)
If the element is 0 then swap the element with the element at index low and update low = low + 1 and mid = mid + 1
If the element is 1 then update mid = mid + 1
If the element is 2 then swap the element with the element at index high and update high = high – 1 and update i = i – 1. As the swapped element is not processed
Print the array.
2. k-th node from the end of the linked list
Easy
15m average time
85% success
0/40
Asked in companies
Given the head node of the singly linked list and an integer ‘k’, , find the value at the kth node from the end of the linked list.
For example:
For the above-linked list, if k=2, then the value at the kth i.e second node from the end is ‘12’.
Note :
1.You don’t need to take any input. It has already been taken care of. Just implement the given function and return a pointer pointing to the k-th element from the last of the linked list.
2.It is guaranteed that k<=size of the linked list.
Problem approach
1) Calculate the length of Linked List. Let the length be len.
2) Print the (len – n + 1)th node from the beginning of the Linked List.
02
Round
Easy
HR Round
Duration20 minutes
Interview date8 Nov 2019
Coding problem1
There were 1 interview present in the meeting. The interviewer was polite and calm.
1. Basic HR questions
Tell us about yourself and your projects
Where do you see yourself in next 5 years
will you accept bond of our company.
One person you admire? and what learnings you have learnt from him/her .
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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