Wells Fargo interview experience Real time questions & tips from candidates to crack your interview

Analyst

Wells Fargo
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4 rounds | 5 Coding problems

Interview preparation journey

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Journey
I started preparing for an on-campus internship drive at the onset of my second year in college (2020). Since I didn't have any prior CS background, my first aim was to learn a language. I started with a Java playlist on the Apni Kaksha Youtube channel, which was tutored by Anuj Bhaiya. I learned the basics of DSA and solved questions that were discussed in the lectures. After 3rd sem, I learned from seniors that apart from DSA, some skills are also required, so I started learning web development from a Udemy course by Angela Yu. After that, I got an internship at a startup, where I learned how to apply my skills to code and build cool projects. After the end of the 4th semester, during the summer break, I got an internship at Level (A startup co-founded by Ranveer Allahabadia). There I learned industry programming standards and how to scale backend systems. Side by side, throughout my 2nd year, I regularly practised questions on leetcode and learned advance data structures like Graph and Trees from Youtube. Also maintained a good CGPA (9.14) by scoring a perfect 10 CGPA in 4th semester. After the end of summer break, tech giant companies like DeShaw, Google, Microsoft, etc, started visiting our campus to offer internships. I was rejected in many of then during Online assessments or in interviews but after many failures, I finally cracked an internship offer from Wells Fargo after 1 OA, 2 technical and 1 HR round, all within the first week of the start of the internship season.
Application story
I applied through my Training and Placement Cell during the internship season in the beginning of the 3rd year. After 3-4 days of application I was shortlisted for giving Online Assessment the next day the results of OA came and I was shortlisted for Interview the very next day. After 2 Technical and 1 HR interview I was selected. Of course all the rounds/interviews were eliminatory.
Why selected/rejected for the role?
I was confident and lively in my approach while solving the problem and asking asked by the interviewer. She was also enjoying interviewing me and I also asked about the company which the interviewer was very happy to answer also I told the interviewer about my short term goal and long term goals which she found quite good.
Preparation
Duration: 1 year
Topics: Data Structures and Algorithms, OOPS, Dynamic Programming, DBMS, Operating System, React, Node
Tip
Tip

Tip 1 : Be regular in practicing DSA questions from platform like leetcode 
Tip 2 : Try to solve new problems (Unseen) under each topic, coz in the interview it becomes easy to cope up with
Tip 3 : Try to solve problem from multiple approaches it always impresses the interviewer

Application process
Where: Campus
Eligibility: 7 CGPA for applying
Resume Tip
Resume tip

Tip 1: Have good projects in your resume
Tip 2: Mention your skills properly and truely. Like only right react in your cv if you know about it

Interview rounds

01
Round
Hard
Online Coding Interview
Duration90 mins
Interview date10 Aug 2021
Coding problem2

It consist of 3 sections 
1. English
2. Analytical Reasoning
3. 2 Coding questions

1. Kth Largest Element In A Stream

Moderate
30m average time
65% success
0/80
Asked in companies
Wells FargoGoldman SachsPhonePe

You will be given a stream of numbers, and you need to find the 'kth' largest number in the stream at any given time.


As the stream of numbers can not be given during compile time, so you need to design a data structure which can accept infinite numbers and can return the 'kth' largest number at any given time.


The stream of numbers is nothing but a large collection of numbers from which integers are read at runtime, such as the user will never know the upper limit on the number of integers that will be read.


The implemented data structure must support the following operations:

1. add(DATA) :
   This function should take one argument of type and store it in its pool and returns the 'kth' largest number from the current pool of integers.

You will be given 'q' queries:

val - For this query, insert the integer into your current pool of integers and return the 'kth' largest integer from the existing pool of integers.
Note
 1. The maximum number of integers that will be given will always be under memory limits.

 2. You will also be given an initial pool of integers whose size equals k.

 3. The maximum number of queries will be less than 10^5.

 4. The 'kth' largest element is not the 'kth' distinct element but the 'kth' largest element in the sorted order.

 5. There will be at least one query of type 2.
Problem approach

Compare the new element with the root of the heap. 
If a new element is smaller, then ignore it. Otherwise, replace the root with a new element and call heapify for the root of the modified heap

Try solving now

2. Reverse Number

Easy
10m average time
90% success
0/40
Asked in companies
Wells FargoProtiumErnst & Young (EY)

Ninja is feeling very bored and wants to try something new. So, he decides to find the reverse of a given number. But he cannot do it on his own and needs your help.

Note:

If a number has trailing zeros, then its reverse will not include them. For e.g., the reverse of 10400 will be 401 instead of 00401.
Problem approach

Input: num
(1) Initialize rev_num = 0
(2) Loop while num > 0
(a) Multiply rev_num by 10 and add remainder of num 
divide by 10 to rev_num
rev_num = rev_num*10 + num%10;
(b) Divide num by 10
(3) Return rev_num

Try solving now
02
Round
Medium
Video Call
Duration40 mins
Interview date11 Aug 2021
Coding problem1

The interviewer asked me questions from my resume, my experiences and the she asked me about react js and virtual dom concept associated with it. Then she asked me to explain OOPS

1. OOPs Questions

Explain the principles of OOPS

03
Round
Easy
Video Call
Duration50 mins
Interview date11 Aug 2021
Coding problem1

First the interviewer asked me a quick intro then asked me to open an IDE of my choice and share screen and asked me to implement a tree and then asked me to implement its inorder, preorder and postorder traversals both recursively and iteratively along with complexity discussion at each approach.

1. Inorder Traversal

Easy
32m average time
0/40
Asked in companies
MakeMyTripWells FargoAmazon

You have been given a Binary Tree of 'n' nodes, where the nodes have integer values. Your task is to return the In-Order traversal of the given binary tree.


For example :
For the given binary tree:

The Inorder traversal will be [5, 3, 2, 1, 7, 4, 6].
Problem approach

I implemented it easily since i have done that before.

Try solving now
04
Round
Easy
HR Round
Duration20 minutes
Interview date11 Aug 2021
Coding problem1

The Interviewer asked me about job location preference , about my family and basic behavioural questions like what will you do if your teammate is ineffective in doing his work.

1. Basic HR Questions

The Interviewer asked me about job location preference , about my family and basic behavioural questions like what will you do if your teammate is ineffective in doing his work.

Problem approach

Tip 1 : Be calm and confident
Tip 2 : Ask questions about company to show your interest
 

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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