representing the preference of each guest (1 for vegetarian, 0 for non-vegetarian). To avoid conflict, no two non-vegetarians can sit next to each other. Determine if the current seating arrangement is valid. An array of integers containing only 0s and 1s.
Many candidates fail the TCS coding section despite writing accurate logic. The iON compiler enforces strict conditions:
Below are the most frequent coding questions from the 2021 slots, complete with logic breakdowns and optimized clean code. Question 1: The Sweet Seventeen (Base Conversion)
import java.util.Scanner;
Based on various slot reports from 2021, here are the most frequent problem types and specific examples:
to find the new position or use array slicing in Python for a one-liner solution. 5. Series Completion (Fibonacci & Prime Mixed) The Problem:
import java.util.Scanner; public class Main public static void main(String[] args) Scanner sc = new Scanner(System.粉in); int[][] rounds = new int[3][3]; int[] average = new int[3]; for (int i = 0; i < 9; i++) if (sc.hasNextInt()) input > 100) System.out.println("INVALID INPUT"); return; rounds[i % 3][i / 3] += input; int maxAverage = 0; for (int i = 0; i < 3; i++) average[i] = rounds[i][0] / 3; if (average[i] > maxAverage) maxAverage = average[i]; if (maxAverage < 70) System.out.println("All trainees are unfit."); return; for (int i = 0; i < 3; i++) if (average[i] == maxAverage) System.out.println("Trainee Number : " + (i + 1)); Use code with caution. 4. Key Execution Pitfalls on TCS iON Tcs Coding Questions 2021
Array: [1, 5, 7, -1, 5], sum=6 → Output: 3 pairs → (1,5), (1,5), (7,-1)
if (num == 0) count++;
roles—often feels like a high-stakes puzzle. In 2021, the coding questions shifted toward story-based problems that test logic just as much as syntax. representing the preference of each guest (1 for
. These questions often focused on mathematical series, string manipulation, and array-based logic. takeUforward 1. Common Coding Questions (2021)
Involved story-based problems, complex data structures, or optimization techniques like Dynamic Programming. Time allotted was generally 30–45 minutes. Top 5 TCS Coding Questions from 2021
Problem Description: In the game of Scrabble, Mario wants to avoid overusing the same letters in any word. Write a program to identify the number of times the most repeating letter appears in a word. If the output number exceeds three, Mario should discard the word. An array of integers containing only 0s and 1s