[Universal]

use:

Above the main():

pawn Код:

new pBankPin [ MAX_PLAYERS ];

And heres the functions:

pawn Код:

stock GenerateBankPin() {
 new pin =  random(9999);
 return pin;
}

stock GivePlayerBankPin ( playerid ) {
new bpin = GenerateBankPin();

for ( new i = 0; i < MAX_PLAYERS ; i++ ) {
 if ( IsPlayerConnected ( i ) && pBankPin [ i ] ==  bpin ) {
  bpin = GenerateBankPin();
 }
}
 return bpin;
}

Havent tested it.