[Challenge:1] Multiples of 3 and 5

Pikami · 11-27-2016, 10:17 AM

(11-27-2016, 12:46 AM)bitm0de Wrote: @Pikami - You could have just used std::map<int, int> and it would have already been sorted on insertions.

Thanks for the tip, I know that using vectors for this is a shity solution Biggrin

Vi-Sion · 11-27-2016, 01:17 PM

Well done @bitm0de +100 for you.
You should now go for the second challenge https://sinister.li/Thread-Fibonacci-Divisibility .

lux · 11-30-2016, 09:29 PM

Go.

Code:
package main

func main() {
	var total int
	for i := 0; i < 1000; i++ {
		if i%3 == 0 || i%5 == 0 {
			total += i
		}
	}
	println(total)
}

Vi-Sion · 11-30-2016, 10:11 PM

@lux wow first time i hear of this language anyway you've done only the first part +50
For extra 50 points do a function to reverse that sum and a function to sort it in ascending order. (this is the part you forgot to do)

Bish0pQ · 12-08-2016, 09:36 AM

C#

Spoiler:Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Multiples
{
   class Program
   {
       static void Main(string[] args)
       {
           //Variables
           int intSum = 0;
           string strSum = string.Empty;

           //Calculate sum
           for (int i = 0; i < 1000; i++)
           {
               if (i % 3 == 0 || i % 5 == 0)
               {
                   intSum += i;
                   strSum = intSum.ToString();
                   
               }
           }

           Console.WriteLine("The sum is {0}", strSum); //Write sum result

           //Reverse the number (another loop, boring I know)
           string strSumReversed = string.Empty;
           int intCount = strSum.Length;

           for (int x = 0; x < strSum.Length; x++)
           {
               strSumReversed = strSumReversed + strSum.Substring(intCount -1, 1);
               intCount = intCount - 1;
           }

           Console.WriteLine("The sum reversed is: {0}", strSumReversed); //Write reversed result
           Console.ReadLine();
          
           }
       }
   }

Vi-Sion · 12-08-2016, 02:19 PM

Good job @Bish0pQ but as mentioned here https://sinister.li/Thread-Competition-R...scoreboard this competition won't continue.

bitm0de · 12-08-2016, 05:35 PM

(12-08-2016, 09:36 AM)Bish0pQ Wrote: C#

Spoiler:

Code:
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Multiples { class Program { static void Main(string[] args) { //Variables int intSum = 0; string strSum = string.Empty; //Calculate sum for (int i = 0; i < 1000; i++) { if (i % 3 == 0 || i % 5 == 0) { intSum += i; strSum = intSum.ToString(); } } Console.WriteLine("The sum is {0}", strSum); //Write sum result //Reverse the number (another loop, boring I know) string strSumReversed = string.Empty; int intCount = strSum.Length; for (int x = 0; x < strSum.Length; x++) { strSumReversed = strSumReversed + strSum.Substring(intCount -1, 1); intCount = intCount - 1; } Console.WriteLine("The sum reversed is: {0}", strSumReversed); //Write reversed result Console.ReadLine(); } } }

String's are immutable in .NET, but why didn't you use the for loop variable here?

Code:
for (int x = 0; x < strSum.Length; x++)
           {
               strSumReversed = strSumReversed + strSum.Substring(intCount -1, 1);
               intCount = intCount - 1;
           }

Instead of keeping track of your own variable?