TCS NQT Coding Questions 2023: Navigating the Technical Assessment

Introduction

The TCS NQT (National Qualifier Test) is a prominent platform for aspiring candidates to showcase their technical skills and secure opportunities with Tata Consultancy Services (TCS). The coding section of TCS NQT plays a pivotal role in evaluating candidates’ programming proficiency. Understanding the format, types of questions, and preparation strategies for TCS NQT coding questions in 2023 is essential for success in this competitive technical assessment.

Step 1: Familiarize Yourself with TCS NQT Exam Pattern Understanding the Exam Structure: Begin by reviewing the TCS NQT exam pattern for 2023. Identify the sections, duration, and marking scheme. The coding section typically assesses problem-solving and coding abilities.

Step 2: Know the Types of Coding Questions Asked Understanding Coding Question Varieties: Explore the types of coding questions that TCS commonly includes. This may involve solving algorithmic problems, implementing data structures, or addressing real-world scenarios through code.

Step 3: Practice on Coding Platforms* Engaging in Coding Practice: Utilize online coding platforms like HackerRank, CodeSignal, and LeetCode to practice a variety of coding problems. TCS NQT often draws inspiration from these platforms, making them valuable resources for preparation.

Step 4: Focus on Data Structures and Algorithms* Strengthening Core Concepts: Prioritize your understanding of fundamental data structures (arrays, linked lists, trees) and algorithms (sorting, searching, dynamic programming). Many TCS NQT coding questions assess these core concepts.

Step 5: Solve Previous Year TCS NQT Coding Questions* Analyzing Past Patterns: Reviewing previous year TCS NQT coding questions can provide insights into the recurring themes and patterns. This step helps in gauging the level of complexity expected in the upcoming test.

Charting Your Coding Progress

Visualizing your coding progress through a chart offers a sense of accomplishment:

  • Problems Solved Daily: Track the number of coding problems you solve each day, gradually increasing the difficulty level.
  • Time Spent on Each Problem: Monitor the time taken to solve each problem, aiming for efficiency and accuracy.
  • Concept Mastery: Highlight areas where you feel confident and those requiring additional practice.

Additional Information

  • Mock Tests and Simulations: Participate in mock tests designed to simulate the TCS NQT environment. This experience helps in managing time constraints and adapting to the actual exam conditions.
  • Peer Discussions and Collaborations: Engage in discussions with peers or join coding communities to collaborate on problem-solving. Diverse perspectives and insights can enhance your coding skills.
  • Review Coding Concepts Regularly: Reinforce your understanding of coding concepts by reviewing data structures, algorithms, and problem-solving techniques regularly. This iterative process solidifies your knowledge base.
  • Stay Updated on TCS NQT Guidelines: Keep an eye on any updates or guidelines provided by TCS regarding the coding section. Understanding specific evaluation criteria or coding language preferences is crucial.

Programming Logic in TCS NQT

TCS NQT Programming Logic definitely tests you for your C, C++, and Java skills, but that is not it. You must have a firm understanding of Computer Science fundamentals to answer questions in OOPS, Recursion, Threads, DSA, etc. There are an adequate number of questions based on Data Structures. Let us first revise the basic rules so that you are fully equipped to take the test:

  • The programming logic section is a compulsory section of the TCS NQT test, even for non-CS or IT students.
  • There are 10 questions in this section, with 15 minutes allotted for the same.
  • This section has no negative marking but is considered fairly difficult.

The cut off for the programming logic section is 6 to 7 questions with about 8-9 topics, which include:

Programming Logic section format:

  • Data types- There is either no or one question from data types which is relatively easy to answer if you have a clear understanding of the concept.
  • Functions and loops- One question with average difficulty is asked for functions and loops. They have usually coded snippets that you will have to predict output for.
  • Recursion, iteration- These too are traditionally mildly challenging questions that either require guessing the output or finding errors in the code.
  • Arrays, stacks and queues- These three closely related topics are reasonably hard to answer and need practice. However, there won’t be more than 1 question for the topic.
  • Trees- About 1-2 relatively tricky questions that can be solved with good practice.
  • Graphs, Command line programming and Greedy algorithms1 challenging questions for all three topics. Solving practice questions for them helps understand them better.

About TCS NQT and Eligible Criteria

TCS NQT is a comprehensive recruitment process designed to assess a candidate’s aptitude, technical knowledge, and communication skills. The eligibility criteria for TCS NQT are straightforward, and candidates who meet the criteria can expect a challenging and rewarding experience. Clearing TCS NQT is an excellent opportunity for young engineers to start their careers at a leading global IT services organization.

The eligibility criteria for TCS NQT are as follows:

  • Educational Qualification: Candidates must have completed a full-time B.E./B.Tech/MCA/M.Sc. degree with a minimum of 60% aggregate marks. The highest degree should have been completed in 2020 or 2021.
  • Backlogs: Candidates must not have more than 1 active backlog at the time of applying for TCS NQT.
  • Bond: Candidates must be willing to sign a bond with TCS for a minimum period of 3 years.

TCS NQT Recruiting Process

Round 1: Online Written Exam

This is the first step or phase of the entire TCS NQT Hiring Procedure because the company’s main goal in this round is to assess the student’s aptitude as well as coding knowledge.

TCS NQT Written Round was updated this year(2023), and there will be two rounds.

  • Part A (Foundation Section for Ninja Profile)
    It consists of questions on reasoning ability, numerical ability, and verbal ability
  • Part B (Advanced Section for Digital profile)
    It requires advanced reasoning ability and advanced coding

Round 2: Technical Interviews

This is the most difficult stage of the hiring process, so prepare as thoroughly as possible. The focus of the interview will be on your technical knowledge, biography, and main project.
There’s a good chance you’ll be assigned to write some code.
Visit the PrepBytes youtube channel to learn more about Interview Experience. You must include all of the elements listed in your resume because omitting any of them will harm your resume.

Round 3: HR Interview

This is the simplest round, here interviewer checks your communication skill, your confidence, and leadership quality .in this round interviewer describes the job profile, and job salary.

TCS NQT Syllabus

The syllabus for TCS National Qualifier Test (NQT) may vary slightly depending on the specific requirements of TCS and the role being recruited for. However, the following are some of the common topics that are covered in TCS NQT:

  • Aptitude: This may include tests on quantitative aptitude, verbal ability, logical reasoning, and data interpretation.
  • Technical: This may include tests on programming concepts, computer networks, databases, operating systems, software engineering, and other related topics.
  • Coding: This may include questions on algorithms, data structures, and problem-solving using programming languages such as C, C++, Java, Python, etc.
  • English: This may include tests on grammar, vocabulary, reading comprehension, and written communication skills.

Question 1: TCS Coding questions 2023-2024:

Problem Statement -: Given an array Arr[ ] of N integers and a positive integer K. The task is to cyclically rotate the array clockwise by K.

Note : Keep the first of the array unaltered. 

Example 1:

  • 5  —Value of N
  • {10, 20, 30, 40, 50}  —Element of Arr[ ]
  • 2  —–Value of K

Output : 40 50 10 20 30

Example 2:

  • 4  —Value of N
  • {10, 20, 30, 40}  —Element of Arr[]
  • 1  —–Value of K

Output : 40 10 20 30

Solution of question 1 in C++:

#include<bits/stdc++.h>
using namespace std;
vector rotate(int nums[], int n, int k) {

if (k > n)
k = k % n;

vector ans(n);

for (int i = 0; i < k; i++) {
ans[i] = nums[n - k + i];
}

int index = 0;
for (int i = k; i < n; i++) {
ans[i] = nums[index++];
}
return ans;
}

int main()
{
int Array[] = { 1, 2, 3, 4, 5 };
int N = sizeof(Array) / sizeof(Array[0]);
int K = 2;

vector ans = rotate(Array, N, K);
for (int i = 0; i < N; ++i) {
cout << ans[i] << ' ';
}
}

Solution of question 1 in JAVA:

import java.util.*;
public class Main
{
    static int[] rotate(int nums[], int n, int k) {
if (k > n)
k = k % n;

int[] ans = new int[n];

for (int i = 0; i < k; i++) {
ans[i] = nums[n - k + i];
}

int index = 0;
for (int i = k; i < n; i++) {
ans[i] = nums[index++];
}
return ans;
}
public static void main(String[] args) {
int Array[] = { 1, 2, 3, 4, 5 };
int N = 5;
int K = 2;

int[] ans = rotate(Array, N, K);
for (int i = 0; i < N; ++i) {
System.out.println(ans[i]);
}
}
}

Question 2: TCS Ninja Coding Questions 2022-2023:

Problem Statement -:  Given two non-negative integers n1 and n2, where n1

For example: Suppose n1=11 and n2=15.

There is the number 11, which has repeated digits, but 12, 13, 14 and 15 have no repeated digits. So, the output is 4.

Example1:

Input:

  • 11 — Vlaue of n1
  • 15 — value of n2

Output: 4

Example 2:

Input:

  • 101 — value of n1
  • 200 — value of n2

Output: 72

Solution of question 2 in C++:

#include<bits/stdc++.h>
using namespace std;
int find(int n1, int n2) {
int count = 0;
for (int i = n1 ; i <= n2 ; i++) {
int num = i;

vector visited;
visited.assign(10, false);

while (num > 0) {
if (visited[num % 10] == true)
break;
visited[num % 10] = true;
num /= 10;
}

if (num == 0)
count++;
}
return count;
}

int main()
{
int n1 = 101, n2 = 200;
cout << find(n1, n2);
}

Solution of question 2 in JAVA:

import java.util.*;
public class Main
{
    static int find(int n1, int n2) {
        int count = 0;
        for (int i = n1 ; i <= n2 ; i++) { int num = i; boolean[] visited = new boolean[10]; while (num > 0) {
if (visited[num % 10] == true)
break;
visited[num % 10] = true;
num /= 10;
}
if (num == 0)
count++;
}
return count;
}
public static void main(String[] args) {
int n1 = 101, n2 = 200;
System.out.println(find(n1, n2));
}
}

Conclusion

TCS NQT coding questions in 2023 demand a strategic and comprehensive approach. By familiarizing yourself with the exam pattern, practicing on relevant platforms, and consistently reviewing coding concepts, you can navigate the technical assessment with confidence. Tracking your coding progress and seeking diverse learning experiences contribute to a well-rounded preparation, increasing your chances of excelling in the TCS NQT coding section and advancing in the recruitment process.

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