TCS NQT
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Quantitative Aptitude
Number system, %, P&L, TSD, T&W and more...
โReasoning Ability
Syllogisms, Seating, Blood Relations, Series...
โVerbal Ability
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โ๐ง Reasoning Ability Hub
8 topics covering logical, analytical and critical reasoning.
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๐ป Coding Hub
Top 50 most asked TCS NQT coding programs in multiple languages.
๐ข Numerical Ability Hub
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๐ Advanced Ability Hub
Master the hardest sections of TCS NQT: Advanced Quant & Reasoning.
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TCS NQT 2026 โ How to Take Input
Super Simple Guide โ Anyone Can Understand!
Input Logic Mastery
TCS NQT Prep Pt. 1
Advanced Input Strategies
๐ค FIRST โ WHAT IS INPUT?
Think like this โ
You give information to computer = INPUT
Computer gives answer back = OUTPUT
๐ฏ WHY IS INPUT IMPORTANT IN TCS NQT?
Imagine teacher gives you numbers on paper โ๏ธ. You read those numbers and solve it! Computer reads your numbers through INPUT! If you don't read correctly โ answer will be WRONG, even if your logic is 100% correct! ๐ฑ
1. Basic Single Input
In Python, input() always returns a string. You must convert it manually if you need numbers.
n = int(input()) # For whole numbers (Integer)
f = float(input()) # For decimals (Float)
s = input() # For text (String)
2. Multi-Value Input (The "Map" Trick)
When values are on the same line, use split() to break the string and map() to convert each piece.
# Input: 5 10
a, b = map(int, input().split())
# Explanation:
# 1. input() -> "5 10"
# 2. split() -> ["5", "10"]
# 3. map(int, ...) -> Converts both to actual integers 5 and 10
3. Array / List Input
Common in TCS NQT: An array is given in a single line. list() is required because map() is just a generator.
# Input: 10 20 30 40 50
arr = list(map(int, input().split()))
# Pro-Tip: If the number of elements (N) is given on the previous line:
n = int(input())
arr = list(map(int, input().split()))[:n] # Caps the list to N elements
4. 2D Matrix (Grid)
Uses a List Comprehension. This is much faster and cleaner than a standard for loop.
r, c = map(int, input().split())
# Reads 'r' lines, splitting each into 'c' integers
matrix = [list(map(int, input().split())) for _ in range(r)]
๐ Python Pro-Tip: Fast I/O
If you have 100,000+ inputs, input() might be slow. Use sys.stdin.readline instead.
import sys
input = sys.stdin.readline # Overrides standard input with fast read
n = int(input())
arr = list(map(int, input().split()))
๐ฏ 5 MOST COMMON TCS NQT PATTERNS
Pattern 1 โ Just One Number
Input Example: 5
n = int(input())
int n = sc.nextInt();
Pattern 2 โ Two Numbers Same Line
Input Example: 5 10
a, b = map(int, input().split())
int a = sc.nextInt();
int b = sc.nextInt();
Pattern 3 โ List of Numbers
Input Example: 5 1 2 3 4 5
n = int(input())
arr = list(map(int, input().split()))
int n = sc.nextInt();
int[] arr = new int[n];
for(int i = 0; i < n; i++) {
arr[i] = sc.nextInt();
}
Pattern 4 โ Table of Numbers (Matrix)
Input Example: 2 2 1 2 3 4
r, c = map(int, input().split())
matrix = []
for i in range(r):
row = list(map(int, input().split()))
matrix.append(row)
int r = sc.nextInt();
int c = sc.nextInt();
int[][] matrix = new int[r][c];
for(int i = 0; i < r; i++){
for(int j = 0; j < c; j++){
matrix[i][j] = sc.nextInt();
}
}
โ COMMON MISTAKES โ DON'T DO THIS!
๐ GOLDEN RULES โ PYTHON
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