Multiple of 3 who can solve it

Question

You are an elementary school teacher and explaining multiplication to students.
You are going to use multiplication by 3 as your example.
The program you are given takes N number as input. Write a program to output all numbers from 1 to N, replacing all numbers that are multiples of 3 by "*".

Sample Input
7

Sample Output
12*45*7

Siddhant panda · Answer

in this airtcle i explain how i did step1- Read number from Console. step2-loop with in range of 1 to Number step3-check if else conditon from starting range if number divisible by 3 then replace by * otherwise same number. step4- after that add enter number. step5-print the output Answer. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApp7 { class Program { static void Main(string[] args) { string repalce = ""; Console.WriteLine("Enter Number:"); int number = Convert.ToInt32(Console.ReadLine()); for(int index=1;index { if(index%3==0) { repalce = repalce + "*"; } else { repalce = repalce + index; } } Console.WriteLine(repalce+number); } } }

Sachin Singh · Answer

Test this public class Program { public static void Main() { List int > numbers= new List int >(); int num; Console.WriteLine( "Enter how many numbers you want to enter" ); int n=Convert.ToInt32(Console.ReadLine()); Console.WriteLine( "Enter {0} numbers" ,n); for (i=1;i { num= Convert.ToInt32(Console.ReadLine()); numbers.Add(num); } foreach( int item in numbers) { if (item%3==0){Console.Write( "*" );} else {Console.Write(item);}; } } }