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Questionenter key Pin
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QuestionExcluding random choices (std c++) Pin
Peter Charlesworth16-Jun-06 5:01
Peter Charlesworth16-Jun-06 5:01 
Hey guys!

I have been working on my random combinor for a while now, and I want to take it to the next level.
The thing actually does this:

It has two arrays of strings, one being filled with names, the other being filled with activities that a person can do.

The program then randomly generates a number (1-9, where 9 is the amount of strings in both arrays) and displays the corresponding name/action.

E.g. "Kim" + " is working in the garden" = Kim is working in the garden.
(You can find the source underneath here, in case you need it)

Now, I want the program to EXCLUDE already used options.

For instance, in my exapmle, the name "Kim" and the activity " is working in the garden." will not be used anymore.

How can I do this? I thought of creating integers carrying or either the value 1 or 0 and when the program generates the random numbers it's going to check that value (0 means the name or activity has not yet been used)and turn it into 1 and proceed, or try another one when it's 1 until he finds one with 0.

But the problem is I don't know how to do this, unless by creating a lot of code, which is too ineffecient to me.

Does anyone have any ideas?

Thanks in advance!

random_activities.cpp<br />
#include < cstdlib ><br />
#include < ctime ><br />
#include < iostream ><br />
#include < string ><br />
using namespace std;<br />
<br />
int main()<br />
{<br />
<br />
   string person[9] = {<br />
            "Jason",<br />
            "My best friend",<br />
            "Uncle Ben",<br />
            "Mark",<br />
            "Eva",<br />
            "Dad",<br />
            "My daughter",<br />
            "Deborah",<br />
            "That kid over there"};<br />
<br />
   string activity[9] = {<br />
            " is preparing a diner for two.",<br />
            " is playing a game of tennis with mum.",<br />
            " is making out with his/her girl/boyfriend.",<br />
            " is studying his geography exam.",<br />
            " is still sleeping.",<br />
            " is cruising on his motorcycle.",<br />
            " is shooting baskets in the garden.",<br />
            " is relaxing by the pool.",<br />
            " is coding a simple program in C++"};<br />
	<br />
    int a = 0;<br />
    int b;<br />
    int i;<br />
    int j;<br />
    const int N = 9;<br />
<br />
    cout << "Who is doing what? Find out with this program!\n";<br />
<br />
    cout << "Of how many persons would you like to know what they are doing?\nThey might be busy doing more things at a time, though!\n";  <br />
<br />
    cin >> b;<br />
<br />
    cout << endl;<br />
<br />
    srand( (unsigned)time( NULL ) );<br />
<br />
    while (a < b){<br />
<br />
    i = rand() % N;<br />
    j = rand() % N; <br />
    cout << person[i] << activity[j] << endl;  <br />
    a++;<br />
    	<br />
    }<br />
<br />
    cout << "\n\nNow you know a bit more about the people around you!\nCome back later, you hear!";<br />
<br />
    getchar();<br />
<br />
    return 0;<br />
 <br />
}

AnswerRe: Excluding random choices (std c++) Pin
capricious_00116-Jun-06 5:14
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AnswerRe: Excluding random choices (std c++) [modified] Pin
Stephen Hewitt16-Jun-06 5:28
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GeneralRe: Excluding random choices (std c++) Pin
Garth J Lancaster16-Jun-06 16:33
professionalGarth J Lancaster16-Jun-06 16:33 
AnswerRe: Excluding random choices (std c++) Pin
Chris Losinger16-Jun-06 6:35
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Question'HDEVINFO' and 'SP_DEVICE_INTERFACE_DATA' Pin
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