how is that output possible? ( from a challenge )

Question

int count=1
for (i=1;i<=99;i++) {
for (j=1;j<=99;j++) {
count++ }
cout<<count;
}

output : 10001

Answer 1

what do you think it should be?

Answer 2

This is just a game, my friend not the art of survival in the wood!
So don't worry about that too much since we are human and humans make a lot of dumb mistakes. Enjoy your time. ;)

Answer 3

Jay is always good at robbing at the right time! So, don't rush. :D

Answer 4

/*******************************************************
* Copyright (C) 2017 Babak Sheykhan
*
* This file is a quiz for Sololearn application.
*
* Quiz can not be copied and/or distributed without the express
* permission of Babak Sheykhan.
*******************************************************/
#include <iostream>
using namespace std;

char blackBox(char &ch) {
int x = -1;

// Step 2:
// in this condition, first, x is compared with itself
// (-1 > -1), then increment by 1. So, it's going to be evaluated
// to false and as a result, else statement will take the program
// flow.
if (x++ > x)
return ++ch;
else

// Step 3:
// As you see, this is a post decrement operator.
// First ch returns to its caller with value of 'b'
// and store in ch2 variable, then decrement by 1 (affect
// the value of ch1 and make it 'a'- based on ASCII table)
return ch--;
}

int main()
{
char ch1 = 'b';

// Step 1:
// Here, ch1 is passed in to blackBox function
// and feed its "alias", so every change that is
// going to be made on ch, will affect ch1, as well.
char ch2 = blackBox(ch1);

// Step 4:
// Here, everything is ready to print out on console
// screen. ch1 = 'a' and ch2 = 'b'.
cout << ch1 << ch2;
}

[https://code.sololearn.com/cIS6yA7MeSh4]

Answer 5

#include <iostream>
using namespace std;

int main()
{
int count = 1;

for (int i = 1; i <= 99; i++) {
for (int j = 1; j <= 99; j++)
count++;
cout << count;
}
}

Output:

10019929839749659569479389299110901189128813871486158516841783188219812080217922782377247625752674277328722971307031693268336734663565366437633862396140604159425843574456455546544753485249515050514952485347544655455644574358425941604061396238633764366535663467336832693170307129722873277426752576247723782279218020811982188317841685158614871388128911901091099208930794069505960497039802

Answer 6

100 * 100 + 1 = 10001

Look jay's code

Answer 7

@ Babak Sheykhan (PERS), a good example 😉

Answer 8

@ jay, thanks for your good explanation 😉

Answer 9

Fyi for anyone else reading.

For each outer loop, the inner loop counts to 100.
Basically it performs a 100 timetable.
1 - 100
2 - 200
etc,

Since the variable we are storing the sum/result in is initially 1, at the end off outer loop the final result has an extra 1. So instead of being 10,000 it is 10,001

Answer 10

You got there though! ok I rob you next time 😀

Answer 11

https://code.sololearn.com/c7SSTyjXV5Gt/?ref=app

Answer 12

Oh there was stuff wrong as it was presented in your question.

If that how it was presented in the quiz I would report it.

But yeah. It is (when corrected) pretty straight forward when you analyse the code.

Thus I did not want to rob you of the satisfaction of figuring it out for yourself.

This feeling, in my opinion, is pretty good!

Answer 13

The code is wrong.

if it worked as is it would be 9802

If you see this again code again in challenges. report it

Answer 14

^ exactly.. it should not have been approved.

Questions are submitted and voted upon by the community. As a result some bad questions slip through. Unfortunately this happens.

Answer 15

finally i got it. nothing is wrong with this particular code. i just got stucked. shit happends. i hope for questions without mistakes if possible. thank you both..

Answer 16

thanks for the answer but i still dont get it. output answer is 10001 when yours starts with 1001
secondly in a challenge is possible the answer not to be full only covering 5 digits?

Answer 17

if the code is wrong how it is included in the challenge with that result?

Answer 18

oh please rob me! i would say the monent i asked .. i had stucked for long and tired.. anyway jay.. you are right to your basic point..

Answer 19

haha! funny like your pic..

Answer 20

shit! maby we need more people/questions in the community(so that more choices for the authority of app) or the good ones give more questions or voting allowd only for premium members