Programming Forums > Application Development > C++

bl00dninja · Nov 30th, 2005, 1:20 AM

the post from mocker is stupid as tempest pointed out. if you do not use srand with time or something pseudo-random you'll get the same shit every time. yeah it'll run...woo-fucking-hoo.

here is some neatly written code that modifies the original:

(Toggle Plain Text)

#include <cstdlib>
#include <iostream>
#include <time.h>

using namespace std;

int main()
{
    srand (time(NULL));
    int random_integer = rand()%10;
    int x;
    int guess;    
    
    while (1)
    {
          cout<<"Enter a number:";
          cin>>guess;
    
          if (guess < random_integer) 
          {
             cout<<"Guess Higher"<<endl;
             continue;
          }
          
          if (guess > random_integer) 
          {
             cout<<"Guess Lower"<<endl;
             continue;
          }
    
          if (guess == random_integer) 
          {
             break;
          }
     }
         
     cout<<"Congratulations,You WIN!"<<endl;

     system("pause");
 }

kurifu · Nov 30th, 2005, 3:28 AM

How random does the number actually have to be? lol.

lectricpharaoh · Nov 30th, 2005, 3:33 AM

Quote:

Originally Posted by HaCkeR

ive sorted that now but heres my code for some reason i think the while loop is stoping from working can somebody help me plz.

(Toggle Plain Text)

#include <cstdlib>
#include <iostream>
 
using namespace std;
 
int main()
{
int x;
int guess;
int a = 1;
int random_integer = rand();
 
while (a < 5);
cout<<"Enter a number:";
cin>>guess;
cin.ignore();
if (guess < random_integer) {
cout<<"Guess Higher";
};
if (guess > random_integer) {
cout<<"Guess Lower";
};
if (guess == random_integer) {
cout<<"Congratulations,You WIN!";
int a = 10;
};
cin.get();
}

it is my first C++ program so thats why it doesnt work

This is your problem. The semicolon is terminating the while() construct. In other words, there is an empty loop body. Let me guess- by 'not working', you mean it gets into an endless loop, and you've got to kill the program, right?

SittingDuck · Nov 30th, 2005, 3:59 AM

Quote:

Originally Posted by kurifu

How random does the number actually have to be? lol.

So that the mean of an infinite number of random numbers equals the mean of the maximum and minimum values that rand() can return.

HaCkeR · Nov 30th, 2005, 2:37 PM

actualy no its not an inf loop it just does nothing at all.
ow an Ooble the

(Toggle Plain Text)

int a = 10

is fine because u need to int a and i wanted to set a = 10 and it is fine to do it all together.

nnxion · Nov 30th, 2005, 2:53 PM

It's fine, but it isn't neat.

DaWei · Nov 30th, 2005, 3:16 PM

Someone needs to watch their semicolons -- both in terms of missing and extra.

Ooble · Nov 30th, 2005, 3:55 PM

Hacker, you're creating a whole new variable called a inside the loop every iteration that replaces the one outside the loop for its duration. Remove the "int".

BN, why not use ctime instead of time.h? This is C++ ya know.

jayme · Nov 30th, 2005, 5:25 PM

seeing as theres already a thread about random numbers made, ill ask here.. How do i assign srand() to a number inbetween something higher than 0? I have a header for producing random numbers in between the specified values, but then other poeple cant compile the program.. and thats not fair

DaWei · Nov 30th, 2005, 6:01 PM

srand just seeds the generator. Adjusting the range of the random numbers is another operation. One can scale it by various means. You need to know its normal range for your system and platform, of course.

Nov 30th, 2005, 1:20 AM	#11
bl00dninja Programming Guru Join Date: Oct 2004 Location: namespace std Posts: 1,246 Rep Power: 5	the post from mocker is stupid as tempest pointed out. if you do not use srand with time or something pseudo-random you'll get the same shit every time. yeah it'll run...woo-fucking-hoo. here is some neatly written code that modifies the original: (Toggle Plain Text) #include <cstdlib> #include <iostream> #include <time.h> using namespace std; int main() { srand (time(NULL)); int random_integer = rand()%10; int x; int guess; while (1) { cout<<"Enter a number:"; cin>>guess; if (guess < random_integer) { cout<<"Guess Higher"<<endl; continue; } if (guess > random_integer) { cout<<"Guess Lower"<<endl; continue; } if (guess == random_integer) { break; } } cout<<"Congratulations,You WIN!"<<endl; system("pause"); } #include <cstdlib> #include <iostream> #include <time.h> using namespace std; int main() { srand (time(NULL)); int random_integer = rand()%10; int x; int guess; while (1) { cout<<"Enter a number:"; cin>>guess; if (guess < random_integer) { cout<<"Guess Higher"<<endl; continue; } if (guess > random_integer) { cout<<"Guess Lower"<<endl; continue; } if (guess == random_integer) { break; } } cout<<"Congratulations,You WIN!"<<endl; system("pause"); } __________________ i put on my robe and wizard hat... Have you ever heard of Plato, Aristotle, Socrates?...Morons.

Nov 30th, 2005, 3:28 AM	#12
kurifu Expert Programmer Join Date: Jul 2004 Location: Halifax, Nova Scotia (Canada) Posts: 784 Rep Power: 5	How random does the number actually have to be? lol. __________________ Clifford Matthew Roche <geek@cliffordroche.com> Web Hosting: http://www.crd-hosting.com Consulting: http://www.crdev-consulting.com

Nov 30th, 2005, 2:37 PM	#15
HaCkeR Hobbyist Programmer Join Date: Nov 2005 Location: UK Posts: 131 Rep Power: 0	actualy no its not an inf loop it just does nothing at all. ow an Ooble the (Toggle Plain Text) int a = 10 int a = 10 is fine because u need to int a and i wanted to set a = 10 and it is fine to do it all together.

Nov 30th, 2005, 2:53 PM	#16
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	It's fine, but it isn't neat. __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

Nov 30th, 2005, 3:16 PM	#17
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	Someone needs to watch their semicolons -- both in terms of missing and extra. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Nov 30th, 2005, 3:55 PM	#18
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	Hacker, you're creating a whole new variable called a inside the loop every iteration that replaces the one outside the loop for its duration. Remove the "int". BN, why not use ctime instead of time.h? This is C++ ya know. __________________ Me :: You :: Them

Nov 30th, 2005, 6:01 PM	#20
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	srand just seeds the generator. Adjusting the range of the random numbers is another operation. One can scale it by various means. You need to know its normal range for your system and platform, of course. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

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Programming Forums > Application Development > C++

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