The 2021 TCS NQT coding questions were characterized by a mix of fundamental logical problems and scenario-based challenges designed to test basic programming proficiency and problem-solving logic. The exam typically featured two coding questions: one of "Easy" to "Moderate" difficulty and another that was more advanced. 1. Key Patterns and Question Types
def first_non_repeating_char(s):
char_count = {}
for char in s:
if char in char_count:
char_count[char] += 1
else:
char_count[char] = 1
Example:
1210 → 1 zero, 2 ones, 1 two, 0 threes → Yes.
2020 → 2 zeros, 0 ones, 2 twos, 0 threes → Yes? Wait, check: In 2020, digits: 2,0,2,0. Tcs Coding Questions 2021
: Prime number checks, GCD/LCM calculation, Armstrong numbers, and Fibonacci series generation. Mathematical Series : Identifying the cap N raised to the t h power term in complex geometric or mixed numeric series. Highly Asked Questions (2021 Samples) The 2021 TCS NQT coding questions were characterized
Problem Statement:
Find all numbers between two given integers L and R (inclusive) such that: : Prime number checks
coins. Find the number of ways to pick one coin from each such that their product is an even number Quick Logic: A product is even if at least one of the numbers is even. Total Ways
Sample Input:
9
-2 1 -3 4 -1 2 1 -5 4