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MegaForum
Grandmaster Cheater
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Joined: 20 Aug 2007
Posts: 558
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 Posted: Fri Jul 04, 2008 2:16 pm Post subject: Questions |
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Hi guys, just got a few questions.  (Again?? I know sorry lol  )
Many you remember my number guess game. After a few suggestions and changes theres 1 problem and I have 1 question  .
Problem: The number that is randomy selected is ALWAYS 42. I'm not sure if the formula is messed up or if I changed something on accident.
Question: What kind of statement can I use to dissallow letters. Basically all I'm asking is an example of something that would make it so if someone typed in a letter,word, or a symbol that It would come up with a message of my choice so that only numbers are allowed. Thanks for the help once again.  .
Current Source:
| Code: |
#include "iostream.h"
#include "stdlib.h"
#include "ctime.h"
using namespace std;
int main()
{
int number;
int tries;
int mynumber=rand()%100+1;
cout << "You get 3 tries to match my number! 1-100"<< endl;
for(int tries=1; tries <=5; tries++)
{
cout << "Enter number" << tries << endl;
cin >> number;
if(number == mynumber)
{
cout << "You got my number correct!" << endl;
break;
}
else if(number != mynumber)
{
cout << "Your are incorrect. " << endl;
}
if(number > mynumber)
{
cout << "Your number is higher than the correct number, try again." << endl;
}
if(number < mynumber)
{
cout << "Your number is lower than the correct number, try again." << endl;
}
}
system("PAUSE");
return 0;
}
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Note: For people who are curious why my headers all are .h or have " " symbols is because in visual C++ 2008, you have name your headers w/e.h and its kept seperate from the main source so you tell it to use that file by using " " but it's really the normal thing. 
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oib111
I post too much
 Reputation: 0
Joined: 02 Apr 2007
Posts: 2947
Location: you wanna know why?
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| Posted: Fri Jul 04, 2008 2:30 pm Post subject: |
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Here's an example program that does the same thing, but 1-10.
| Code: |
/* rand example: guess the number */
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main ()
{
int iSecret, iGuess;
/* initialize random seed: */
srand ( time(NULL) );
/* generate secret number: */
iSecret = rand() % 10 + 1;
do {
printf ("Guess the number (1 to 10): ");
scanf ("%d",&iGuess);
if (iSecret<iGuess) puts ("The secret number is lower");
else if (iSecret>iGuess) puts ("The secret number is higher");
} while (iSecret!=iGuess);
puts ("Congratulations!");
return 0;
}
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| 8D wrote: |
cigs dont make people high, which weed does, which causes them to do bad stuff. like killing |
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Dark Byte
Site Admin
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Joined: 09 May 2003
Posts: 25832
Location: The netherlands
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| Posted: Fri Jul 04, 2008 3:11 pm Post subject: |
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the important difference: srand
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