A sololearn Bug

Question

why does it say stor../Playground// in this code
https://code.sololearn.com/cA11A1826A8a

It is indeed strange...

Answer 1

It looks like the variable "what" is unaffected and something is translating or trying to hide file paths after. It seems fair to say that Sololearn has a bug in how they process standard output from the programs they run.

Running this in Python also outputs "stor../Playground//"
print("stor/elec/bio/med/")
so this bug is probably affecting output from all types of Sololearn Playground codes.

If that is done to prevent us from seeing file paths, that would be ineffective because I printed your string anyway. If it had some secret, you could see the original value anyway.

I experimented with the code and commented my findings here:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
string what = "stor/elec/bio/med/";//I type this

// The following loop outputs: s t o r / e l e c / b i o / m e d /..
foreach (char c in what) {
Console.Write(" " + c);
}
Console.WriteLine("..");
Console.WriteLine(what);//it outputs stor../Playground//
Console.WriteLine("elec/bio/med/");//it outputs elec/bio/med/
Console.WriteLine("/elec/bio/med/");//it outputs ../Playground//
Console.WriteLine("/hello/world/hi/");//it outputs ../Playground//
Console.WriteLine("stor/elec/bio/med/");//it outputs stor../Playground//
Console.WriteLine("stor/" + "elec/bio/med/");//it outputs stor../Playground//
Console.Write("stor/"); // it outputs stor
Console.Write("elec/bio/med/");//it outputs ../Playground//
Console.WriteLine("----");
Console.WriteLine(what.Contains("Playground"));//it denies it's existance
Console.WriteLine(what.Contains("bio"));//it still believes the og value is true
}
}
}