+ 4

how is that output possible? ( from a challenge )

int count=1 for (i=1;i<=99;i++) { for (j=1;j<=99;j++) { count++ } cout<<count; } output : 10001

13th Oct 2017, 10:29 AM
kronos
kronos - avatar
26 Respuestas
+ 10
what do you think it should be?
13th Oct 2017, 10:33 AM
jay
jay - avatar
+ 19
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. ;)
13th Oct 2017, 3:02 PM
Babak
Babak - avatar
+ 19
Jay is always good at robbing at the right time! So, don't rush. :D
13th Oct 2017, 5:34 PM
Babak
Babak - avatar
+ 19
/******************************************************* * 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]
14th Oct 2017, 7:59 AM
Babak
Babak - avatar
+ 17
#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
13th Oct 2017, 10:35 AM
Babak
Babak - avatar
+ 16
100 * 100 + 1 = 10001 Look jay's code
13th Oct 2017, 2:46 PM
Babak
Babak - avatar
+ 15
@ Babak Sheykhan (PERS), a good example 😉
14th Oct 2017, 8:18 AM
tooselfish
tooselfish - avatar
+ 13
@ jay, thanks for your good explanation 😉
14th Oct 2017, 4:24 AM
tooselfish
tooselfish - avatar
+ 12
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
13th Oct 2017, 5:19 PM
jay
jay - avatar
+ 11
You got there though! ok I rob you next time 😀
13th Oct 2017, 5:10 PM
jay
jay - avatar
+ 7
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!
13th Oct 2017, 4:31 PM
jay
jay - avatar
+ 6
The code is wrong. if it worked as is it would be 9802 If you see this again code again in challenges. report it
13th Oct 2017, 2:46 PM
jay
jay - avatar
+ 6
^ 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.
13th Oct 2017, 2:51 PM
jay
jay - avatar
+ 2
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..
13th Oct 2017, 4:25 PM
kronos
kronos - avatar
+ 1
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?
13th Oct 2017, 2:45 PM
kronos
kronos - avatar
+ 1
if the code is wrong how it is included in the challenge with that result?
13th Oct 2017, 2:49 PM
kronos
kronos - avatar
+ 1
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..
13th Oct 2017, 5:08 PM
kronos
kronos - avatar
+ 1
haha! funny like your pic..
13th Oct 2017, 5:14 PM
kronos
kronos - avatar
0
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
13th Oct 2017, 2:58 PM
kronos
kronos - avatar