HCL Technologies interview experience Real time questions & tips from candidates to crack your interview
SDE
HCL Technologies
2 rounds | 4 Coding
problems
Rejected
Interview preparation journey
Preparation
Duration: 4 months
Topics: Quant , Aptitude , Coding questions , HR Questions and Resume
Tip 1 : Practice Quant questions
Tip 2 : Prepare your resume
Tip 3 : Be confident
Application process
Where: Campus
Eligibility: No
Tip 1 : Keep your resume clear
Tip 2 : Highlight what you have accomplished
Interview rounds
01
Round
Easy
Online Coding Test
Duration60 minutes
Interview date9 Sep 2021
Coding problem2
Coding questions based on array and stack
1. Find Non - Repeating Numbers
Easy
15m average time
85% success
0/40
Asked in companies
You are given an array of integers ‘A’ having ‘N’ number of elements. It is given that all the numbers in the array occur twice except the two numbers that appear only one time. You need to find those two non-repeating numbers.
For Example:
If the given array is [ 4, 7, 3, 2, 7, 2 ], you have to find ‘4’ and ‘3’ as 4 and 3 occur one time, and the rest of the elements ( 7 and 2 ) are occurring twice.
Problem approach
unordered_mapm;
for( int i=0;im[arr[i]]++;
}
for( int i=0;iif( m[arr[i]]==1)return arr[i];
}
// Complete the function
return 0;
2. Best Time to Buy and Sell Stock II
Moderate
22m average time
0/80
Asked in companies
You have been given stock values/prices for N number of days. Every i-th day signifies the price of a stock on that day. Your task is to find the maximum profit which you can make by buying and selling the stocks.
Note :
You may make as many transactions as you want but can not have more than one transaction at a time i.e, if you have the stock, you need to sell it first, and then only you can buy it again.
Problem approach
class Solution{
public:
//Function to find the days of buying and selling stock for max profit.
vector > stockBuySell(vector A, int n)
{
vector> v;
vector temp;
int low=0,high=0;
for(int i=0;i<(n-1);i++)
{
low=i;
high=i;
while(A[i+1]>A[i] && i<(n-1))
{
++high;
++i;
}
if(low!=high)
v.push_back({low,high});
}
return v;
}
};
02
Round
Medium
Face to Face
Duration45 minutes
Interview date24 Sep 2021
Coding problem2
consolidate your knowledge and concepts in DBMS
1. DBMS Question
Explain different languages present in DBMS.
Problem approach
Tip 1 : DDL DML
Tip 2 : Practice
Tip 3 : Confidence
2. DBMS Question
What is meant by ACID properties in DBMS?
Problem approach
Tip 1 : ACID stands for Atomicity, Consistency, Isolation, and Durability in a DBMS these are those properties that ensure a safe and secure way of sharing data among multiple users.
Tip 2 : Read DBMS Concepts
Tip 3 : Practice
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
Similar interview experiences
Software Engineer
2 rounds | 3 problems
Interviewed by HCL Technologies
Selected 
0 views
2 comments
0 upvotes
SDE
2 rounds | 4 problems
Interviewed by HCL Technologies
Selected 0 views
0 comments
0 upvotes
System Engineer
3 rounds | 6 problems
Interviewed by HCL Technologies
Rejected
943 views
0 comments
0 upvotes
Software Engineer
2 rounds | 6 problems
Interviewed by HCL Technologies
Selected 1390 views
0 comments
0 upvotes
Companies with similar interview experiences
SDE
4 rounds | 6 problems
Interviewed by HashedIn
Selected 727 views
0 comments
0 upvotes