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How to get multiple non-repeating random numbers


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ZBzibing
Senior Member
Join Date: Dec 2012
Old 07-05-2024 , 02:05   How to get multiple non-repeating random numbers
Reply With Quote #1

GetRandomInt can only get one number, I want to get multiple non-repeating numbers, and I need to limit the number of random numbers obtained from not coexisting
Example:
Random number = {A,B,C,D,E,0,1,2,3,4}, get 3 of them and cannot repeat
When A and 0 cannot coexist
Random Number = A, B, C (Correct)
Random number = A,0,4 (false)
__________________
Please forgive, If I'm not describing it accurately. I use google translate
Functional tests are all from L4D1, and are only keen to solve and fix various bugs of L4D1:

Last edited by ZBzibing; 07-05-2024 at 11:05.
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101
Senior Member
Join Date: Nov 2023
Old 07-08-2024 , 11:52   Re: How to get multiple non-repeating random numbers
Reply With Quote #2

PHP Code:
int MyArray[10]={A,B,C,D,E,0,1,2,3,4};
int Chosen[3];

My_Function()
{
    
int X,i,j;
    while (
3)
    {
        
MyArrayGetRandomInt(0,9) ];
        
        
j=0;
        while (
i)        //Loop2 Through Values To Check
        
{
            if ( 
X==Chosen[j] || ( (X==|| X==0) && (Chosen[j]==|| Chosen[j]==0) ) )
            {    
                
= -1;
                break;        
//Try Another Random
            
}
            
j++;
        }
        
        if (
!= -1)    Chosen[i++]=X;
    }
    
//test :
    
for (int k=<;k++)    PrintToServer("Value #%d : %d .",k+Chosen[k]);


Last edited by 101; 07-08-2024 at 11:59.
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Grey83
Veteran Member
Join Date: Dec 2014
Location: Ukraine
Old 07-12-2024 , 08:29   Re: How to get multiple non-repeating random numbers
Reply With Quote #3

PHP Code:
static const int MY_ARRAY[] = {0xA0xB0xC0xD0xE01234};

void GetRandom()
{
    
ArrayList hList CreateArray();
    
int i = -1rnd[3], pos;
    for(; ++
sizeof(MY_ARRAY);) hList.Push(MY_ARRAY[i]);

    for(
i=-1; ++&& hList.Length;)
    {
        
rnd[i] = hList.Get(GetRandomInt(0, (hList.Length 1)));
        
hList.Erase(i);
        if((
rnd[i] == 0xA && (pos hList.FindValue(0)) != -1) || (rnd[i] == && (pos hList.FindValue(0xA)) != -1))
            
hList.Erase(pos);
    }
    
CloseHandle(hList);

    
PrintToChatAll("Random number = %i, %i, %i"rnd[0], rnd[1], rnd[2]);

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Last edited by Grey83; 07-13-2024 at 13:55.
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101
Senior Member
Join Date: Nov 2023
Old 07-13-2024 , 11:31   Re: How to get multiple non-repeating random numbers
Reply With Quote #4

Quote:
Originally Posted by Grey83 View Post
Spoiler
brilliant! , But you must delete hList in order to prevent any extra memory usage .
Handles will not be deleted until the plugin unloaded .So you have to delete them manually when you have finished , Or You may public that arraylist handle to be the only one that handle data then use Clear after usage .
For more information : ArrayList Memory Usage

Last edited by 101; 07-13-2024 at 11:41. Reason: Extra Info will be linked as soon as possible
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