'Coding has over 700 languages', '67% of programming jobs aren’t in the technology industry', 'Coding is behind almost everything that is powered by electricity'
Visa interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
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4 rounds | 6 Coding problems
Interview preparation journey
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Preparation
Duration: 12 months
Topics: Data Structure, OS, DBMS, System Design, Dynamic Programming
Tip
Tip

Tip 1 : Work on your problem-solving skills. Solve as many questions as you can.
Tip 2 : Communication skills are very important in interviews.
Tip 3 : Do some good projects.

Application process
Where: Campus
Eligibility: 6.5 CGPA
Resume Tip
Resume tip

Tip 1 : Mention some good projects on your resume and be prepared.
Tip 2 : Do not put false things on your resume.

Interview rounds
01
Round
Medium
Online Coding Interview
Duration60 minutes
Interview date3 Nov 2020
Coding problem2

This was an elimination round. There were 2 coding questions. Both questions were of medium level and I solved them in a given time. After this round, 29 students got shortlisted and I was one of them.

1. Ninja And The Dance Competetion
Easy
10m average time
90% success
0/40
Asked in companies
MicrosoftVisaSalesforce

Ninja has been asked to organize a dance competition. Ninja decided that he will take individual entries and then will divide them into pairs. As part of the entry, he asked the part...

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Problem approach

I solved this question using the map in O(n) time complexity. First I stored the count of elements in an array then by checking the condition(k > 0 && map.containsKey(i + k) || k == 0 && map.get(i) > 1), I incremented the result by one every time when condition satisfied. Below is my code for the same.

class Solution {
public int findPairs(int[] nums, int k) {

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2. Maximum length sub-array having absolute difference of adjacent elements either 0 or 1.
Easy
15m average time
85% success
0/40
Asked in companies
VisaAdobeRanosys

Given an array ‘A’ of ‘N’ integers, you need to find the maximum length of the sub-array such that the absolute difference between the adjacent elements of the sub-array should be either 0 or 1.

<...
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Problem approach

This was a simple array problem. I solved this using question as:
Starting from the first element of the array, find the first valid sub-array and store its length then starting from the next element (the first element that wasn’t included in the first sub-array), find another valid sub-array. Repeat the process until all the valid sub-arrays have been found then print the length of the maxi...

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02
Round
Easy
Video Call
Duration60 minutes
Interview date4 Nov 2020
Coding problem1

This was a technical round on Zoom. The interviewer was very friendly. He gave me one coding problem. I solved the problem and then he asked to improve time and space complexity if possible. I explained my logic very well. After this question, he asked to me explain 3NF(3rd normal form). Then we had some discussion on OOPs concepts.

1. LRU Cache Implementation
Moderate
25m average time
65% success
0/80
Asked in companies
SAP LabsJP MorganJP Morgan

Design and implement a data structure for Least Recently Used (LRU) cache to support the following operations:

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Problem approach

Solve this beforehand.

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03
Round
Medium
Video Call
Duration60 minutes
Interview date4 Nov 2020
Coding problem1

This was another technical round. The interviewer gave me a coding problem to solve.
 

1. Valid String
Moderate
18m average time
85% success
0/80
Asked in companies
SalesforcePaytm (One97 Communications Limited)Expedia Group

You have been given a string 'S' containing only three types of characters, i.e. '(', ')' and '*'.

A Valid String is defined as follows:

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04
Round
Easy
HR Round
Duration60 minutes
Interview date5 Nov 2020
Coding problem2
1. General

What do you want to work in?
Why do you want to join VISA?
Asked what kept them at VISA? And what they’re objectives in their career?

2. System Design problem

What to do if there are too many requests to a web server? Don’t know if they’re correct. I feel it was a more test to see your critical thinking and acquired knowledge.

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