HCL Technologies interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
HCL Technologies
2 rounds | 4 Coding
problems
Rejected
Interview preparation journey
Preparation
Duration: 3 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: CSE IT Branch
Tip 1 : Keep your resume clear
Tip 2 : Highlight what you have accomplished
Interview rounds
01
Round
Hard
Online Coding Interview
Duration60 Minutes
Interview date1 Mar 2020
Coding problem2
1. First non repeating character
Easy
15m average time
80% success
0/40
Asked in companies
Ninja is now bored with numbers and is now playing with characters but hates when he gets repeated characters. Ninja is provided a string, and he wants to return the first unique character in the string.The string will contain characters only from the English alphabet set, i.e., ('A' - 'Z') and ('a' - 'z'). If there is no non-repeating character, print the first character of the string. If there is no non-repeating character, return the first character of the string.
Problem approach
unordered_mapm;
for( int i=0;i m[arr[i]]++;
}
for( int i=0;i if( m[arr[i]]==1)return arr[i];
}
// Complete the function
return 0;
2. Best Time to Buy and Sell
Moderate
20m average time
80% success
0/80
Asked in companies
You are given an array(PRICES) of stock prices for N consecutive days. Your task is to find the maximum profit that you can make by completing as many transactions as you like, where a transaction denotes buying one and selling one share of the stock.
Note:
You must sell the stock before you 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
Duration60 Minutes
Interview date19 Mar 2020
Coding problem2
o 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
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