Great job Jacob05. Your solution is more efficient.

Solution below as solved by someone on my team

bcscale(25);
$itotal = "0";
$xt = "0.7893";$ii = 1;
$yyy = "1";while ($ii <= 5000)
{
    $y2 = intval(gmp_add($yyy,"1");
    $y3 = strval($y2);
    
    $factit = gmp_fact($y2);
    
    $at = bcdiv(gmp_mul("2", gmp_sub($factit,"1"), $factit);
    $xtpow = bcpow($xt,$y2);
    
    $anst = bcmul($at,$xtpow);
    
    $itotal = bcadd($itotal,$anst);
    $yyy = gmp_add($yyy,"1";
    $ii++;
    
}

echo "Solution: " .$itotal."<br />";

Lyphiard:
Please do not answer this problem. The OP has taken this question from a competition and is attempting to cheat.

Calm your tits.

I solved the challenges before posting here, and the answer for this is 5.08xxxxxxxxxxxxxxxxxx.

I will release the write up later .

Cheers Kiddo,

R.

larisoft:
@OP... your questions are real brain heaters. I love them! But would you please provide the solutions after each of them has been unsolved for hours?. Many of us attempt them for hours and it will be nice to finally know the solution after trying so hard!

I sure will.

Thanks

bump

Bola discovered a mysterious piece of paper, containing a mysterious formula:

x^2 + (5/3)x^3 + (23/12)x^4 + (119/60)x^5 ... + (2*[5000!-1]/[5000!])x^5000


Bola was curious, and so decided to evaluate the expression for x=0.7893

What number was returned, to the nearest 20 decimal places?

^^

The answer is a number that starts with 132.................

Use the hashcode() :-)

Taye and Kenny were in class. They both tried to describe a man that was once sick. Taye said "The man had a cold." Kenny said "The man had had a cold." According to English grammar, Kenny was correct.

Now imagine their two teachers, Seun and Tony: Tony was a little off, and said that "Taye, while Kenny had had 'had had', had had 'had'; 'had' had had the better grammar." Seun corrected him, saying "Kenny, while Taye had had 'had', had had 'had had'; 'had had' had had the better grammar."

Continuing this pattern, the knowledgeable supervisor would note that "Seun, while Tony had had 'had had had had had had had had had had', had had 'had had had had had had had had had had had'; 'had had had had had had had had had had had' had had the better grammar."

Continuing this, how many 'had's would be in the incorrect 100th iteration?

proxy20:
I don't know python I don't think anyone will be interested in this Greek mathematics and the program is poorly written . I tried to run the Greek program since I can't do shit .


my guess ans is 0.25

Wrong.

crotonite:
HOPE I AM RIGHT

**Modified**
i think i found a bug.. i used args[3] instead of args[2]. i can't rectify it now

Wrong

Hey guys,

Another challenge.

Question : Tope wrote a computer program. He isn't a very good programmer, so his program takes too long. Can you figure out the output?

import struct
import ctypes
import cmath

offset = struct.calcsize('PP')
def set(x, i):
    ctypes.c_ssize_t.from_address(id(x) + offset).value = i


def get(x):
    return x ^ 0


set(1, 23)
set(2, (lambda x:x + 1)(1))
set(3, 59)
set(4, 134)
v = hash(open(__file__).read()[-587:]) + 93607936174329872951
set(5, -287)
j = 12219
n = 12
dsdaasdkjdsf = (v*v*v*v*v )**0.5
while n < dsdaasdkjdsf + 10:
    set(1, get(3) - get(4) + get(5) + get(5) + get(5) + get(5) + get(5) + get(2))
    set(2, -get(3)-get(3)  + get(4) + get(4) + get(4) - get(5) - get(5) - get(5) - get(5) - get(5) - get(5) - get(2) - get(2) - get(2) - get(2) - get(2) - get(2) - get(2))
    set(3, get(1) + get(1) + get(3))
    set(4, get(1) + get(2) + get(3) + get(5))
    set(5, -get(4) -get(4) -get(4)+ get(1) + get(1) + get(1) + get(1) + get(1))
    n -= int((2.7182818 ** (3.14159265j)).real - 0.2)
print get(5) % 10**100

Hey guys,

I came across this challenge and thought to share.

Challenge question : What is the frame?

import java.util.Random;
import java.util.Scanner;


public class PlsHalp {
	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		
		int i = s.nextInt();
		args = new String[i];
		for(int x = i-1; x >= 0; x--)
			args[x] = s.nextLine();
		
		String tot = "";
		for(String str: args)
			tot += str;
		
		if(tot.equals("my feet smell and nose runs")
   System.out.println("Use knee on frame: " + (args[0] + args[2] + args[4] + args[6]).replace(" ", "".hashCode());
	}
}

ChinenyeN:

For example, the OP seems to be guaranteeing that mnbvcxzasdfghjkl will result in 3972324570-3270832326-3469527270-909489460 each time. If that's the case (and if this is a number generator problem), then the solution would have to make use of a seed. But we are not given the seed in this problem.

You are right about the output being the same every time.

If I had the seed, ofcourse, it no longer becomes a challenge.

This is a reverse engineering challenge, and I have uploaded the numgen software here https://www.dropbox.com/s/tttxbtql079jd9b/numgen.exe?dl=0 . It is a CLI application, so just navigate to the directory from your command prompt and run.

You can also find the virus scan result here (so you can be rest assured I am not trying to infect you) https://www.virustotal.com/en/url/76f9f0d3d5a230a17b45e04eefb5d680068f6117760994728b179a2328e54588/analysis/1459063916/

Happy Reversing

proxy20:
password
Enter the key o
d0248b4e
47996655
83f05689
lc154b6ea
If it doesn't work put it in a online MD6 hash generator to generate a password .

Reverse d0248b4e4799665583f05689lc154b6ea, and you have your answer i.e. ae6b4.......

proxy20:
msgbox ('coding in jetbrain');

You didnt get it.

You missed this.reverse

proxy20:
password

Enter the key o
d0248b4e
47996655
83f05689
lc154b6ea

If it doesn't work put it in a online MD6 hash generator to generate a password .

this.reverse

proxy20:
in java gui

JTextField.Text=random.Next(1,16)

Random generator = new Random();

JOptionPane.showMessageDialog( generate);

it Is just for me to place the button and textfield in jframe .

The objective of this exercise is not to create a random generator.

If putting in a 16 character string "1234567890123456", generates a serial number "1650614882-1650614882-1650614882-1650614882", what 16 character string do I have top put in, to generate "851122601-565353145-976764089-3706359006"??

Look at the other sequences to perfect your algorithm

SleepingDemon

This is the question "Given the following sequences, what will be my 16 character string to generate the serial number "851122601-565353145-976764089-3706359006" ?"

proxy20:
There is no query to in the main c.s . I run the code in windows form in c# . The errors was much .

You don't need to run it.

Look at the code, and interpret it.

This is an .exe file. When you run it, it asks for a password.

We need to get that pass. The pass has been defined "txtPass".

Cheers

I have a number generator, that takes in 16 characters, and then generates a serial number.

The following are the sequences generated by this number generator:

Please enter a 16 character string to generate:
1234567890123456
Your Serial key is: 1751540834-1886284906-1684168818-1818912870



Please enter a 16 character string to generate
1111111111111111
Your Serial key is: 1650614882-1650614882-1650614882-1650614882

Please enter a 16 character string to generate
2222222222222222
Your Serial key is: 421075225-421075225-421075225-421075225



Please enter a 16 character string to generate
0987654321234567
Your Serial key is: 463215768-429529755-429463705-463149722

Please enter a 16 character string to generate
qwertyuiopasdfgh
Your Serial key is: 3838504674-884653242-3871531230-875803442


Please enter a 16 character string to generate
mnbvcxzasdfghjkl
Your Serial key is: 3972324570-3270832326-3469527270-909489460


Given the following sequences, what will be my 16 character string to generate the serial number "851122601-565353145-976764089-3706359006" ?

Guys, I came across this, and thought to share.

Basically, there is a .exe file, which when you run, requests for a password. The objective of this- is to get the password.

Let's see who can solve this - please document your thoughts process too.

Cheers

using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace rot
{
  public class Form1 : Form
  {
    private IContainer components;
    private Label label1;
    private TextBox txtPass;
    private Button btnCheck;
    private Label label2;
    private Label label3;
    private Label label4;
    private Label label5;

    public Form1()
    {
      this.InitializeComponent();
    }

    private string reverse(string original)
    {
      char[] chArray = original.ToCharArray();
      Array.Reverse((Array) chArray);
      return new string(chArray);
    }

    private bool ShallHePass()
    {
      return this.txtPass.Text == this.reverse(this.label2.Text + this.label3.Text + this.label4.Text + this.label5.Text);
    }

    private void btnCheck_Click(object sender, EventArgs e)
    {
      this.label3.Text = "47996655";
      int num = (int) MessageBox.Show(this.ShallHePass() ? "you shall pass" : "you shall not pass";
    }

    private void Form1_Load(object sender, EventArgs e)
    {
      this.label4.Text = "83f05689";
    }

    protected override void Dispose(bool disposing)
    {
      if (disposing && this.components != null)
        this.components.Dispose();
      base.Dispose(disposing);
    }

    private void InitializeComponent()
    {
      this.label1 = new Label();
      this.txtPass = new TextBox();
      this.btnCheck = new Button();
      this.label2 = new Label();
      this.label3 = new Label();
      this.label4 = new Label();
      this.label5 = new Label();
      this.SuspendLayout();
      this.label1.AutoSize = true;
      this.label1.Location = new Point(12, 80);
      this.label1.Name = "label1";
      this.label1.Size = new Size(131, 13);
      this.label1.TabIndex = 0;
      this.label1.Text = "Enter the key on the ring:";
      this.txtPass.Location = new Point(143, 77);
      this.txtPass.Name = "txtPass";
      this.txtPass.Size = new Size(129, 20);
      this.txtPass.TabIndex = 1;
      this.btnCheck.Location = new Point(105, 125);
      this.btnCheck.Name = "btnCheck";
      this.btnCheck.Size = new Size(75, 23);
      this.btnCheck.TabIndex = 2;
      this.btnCheck.Text = "I shall Pass!";
      this.btnCheck.UseVisualStyleBackColor = true;
      this.btnCheck.Click += new EventHandler(this.btnCheck_Click);
      this.label2.AutoSize = true;
      this.label2.ForeColor = SystemColors.Control;
      this.label2.Location = new Point(12, 165);
      this.label2.Name = "label2";
      this.label2.Size = new Size(55, 13);
      this.label2.TabIndex = 3;
      this.label2.Text = "d0248b4e";
      this.label3.AutoSize = true;
      this.label3.ForeColor = SystemColors.Control;
      this.label3.Location = new Point(12, 178);
      this.label3.Name = "label3";
      this.label3.Size = new Size(55, 13);
      this.label3.TabIndex = 4;
      this.label3.Text = "47886655";
      this.label4.AutoSize = true;
      this.label4.ForeColor = SystemColors.Control;
      this.label4.Location = new Point(12, 191);
      this.label4.Name = "label4";
      this.label4.Size = new Size(53, 13);
      this.label4.TabIndex = 5;
      this.label4.Text = "83f05688";
      this.label5.AutoSize = true;
      this.label5.ForeColor = SystemColors.Control;
      this.label5.Location = new Point(12, 204);
      this.label5.Name = "label5";
      this.label5.Size = new Size(54, 13);
      this.label5.TabIndex = 6;
      this.label5.Text = "c154b6ea";
      this.AutoScaleDimensions = new SizeF(6f, 13f);
      this.AutoScaleMode = AutoScaleMode.Font;
      this.ClientSize = new Size(284, 262);
      this.Controls.Add((Control) this.label5);
      this.Controls.Add((Control) this.label4);
      this.Controls.Add((Control) this.label3);
      this.Controls.Add((Control) this.label2);
      this.Controls.Add((Control) this.btnCheck);
      this.Controls.Add((Control) this.txtPass);
      this.Controls.Add((Control) this.label1);
      this.FormBorderStyle = FormBorderStyle.FixedSingle;
      this.MaximizeBox = false;
      this.MinimizeBox = false;
      this.Name = "Form1";
      this.Text = "Enter";
      this.Load += new EventHandler(this.Form1_Load);
      this.ResumeLayout(false);
      this.PerformLayout();
    }
  }
}

[img]http://m.popkey.co/9c8c5b/7M7Og_f-maxage-0.gif[/img]

Story sounds like something that was made up.

I assume an audit firm would have a formal termination procedure. Your direct boss has no business directly sacking you, as that is the HR Partner/Manager's responsibility.

In addition, as part of this "formal termination procedure", an audit firm would atleast have "Warning", "Suspension", and then dismissal.

Anyways, what do I know?

Glory be to the Lord Almighty for this great feat and achievement!

While my mates are being commended for scientific discoveries; here I am, wallowing in the First-To-Comment Odoriferous phantasmagoria.

Presticimo, I also seize this great opportunity to thank my family, my friends, my parents, my uncle, my aunt, my grandmother, my grandfather, and my Internet provider for giving me the privilege to comment first on this page.

I am Happy, I am H'excited, I never Hexperrerit

How does this concern Donjazzy?

[img]http://thepublicblogger.files./2013/01/bloggers-are-weird.jpg[/img]

[img]http://cdn.meme.am/images/12208679.jpg[/img]

This playlist right here is the best thing to ever happen to me.

Thank me later.


https://www.youtube.com/watch?v=cxQN1g491NQ&list=RDcxQN1g491NQ#t=0

[img]http://cdn.meme.am/images/12208679.jpg[/img]

LOL. I can totally relate



19.) When you overhear that Enijoku/Sodeinde squatter claiming to stay at Ozolua/Highrise

[img]http://www.nigeriafilms.com/image.aspx?img=Y29udGVudC9jb250ZW50L3Bhdy1wYXctR0lSTC5qcGd8NjYw[/img]