🔢 Day 3: Introduction to Conditional Statements – HackerRank Practice with C#

🎯 Objective

In this challenge, you'll practice using conditional statements (if, else if, else) to control the program flow based on input values.

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🧠 Problem Statement

Given an integer N, apply the following rules:

• If N is odd, print "Weird".

• If N is even and in the inclusive range 2 to 5, print "Not Weird".

• If N is even and in the inclusive range 6 to 20, print "Weird".

• If N is even and greater than 20, print "Not Weird".

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📥 Input Format

A single line containing a positive integer N.

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📤 Output Format

Print either "Weird" or "Not Weird" based on the rules above.

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🧪 Sample Input

3

🧪 Sample Output

Weird

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🔍 Explanation

Since 3 is odd, it matches the first condition. So, we print "Weird".

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💡 Starter Code

using System;

class Solution

{

public static void Main(string[] args)

{

int N = Convert.ToInt32(Console.ReadLine().Trim());

// Your code here

}

}

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✅ Final Solution Code

using System;

class Solution

{

public static void Main(string[] args)

{

int N = Convert.ToInt32(Console.ReadLine().Trim());

if (N % 2 != 0) // Odd number

{

Console.WriteLine("Weird");

}

else // Even number

{

if (N >= 2 && N <= 5)

{

Console.WriteLine("Not Weird");

}

else if (N >= 6 && N <= 20)

{

Console.WriteLine("Weird");

}

else if (N > 20)

{

Console.WriteLine("Not Weird");

}

}

}

}

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🧠 Key Takeaways

• % (modulo) operator helps determine if a number is odd or even.

• Use if, else if, and else blocks to evaluate multiple conditions in sequence.

• Condition order matters! Always test from specific to general.