[Konstantinos]

Something like this:

pawn Code:

new id, Float: range, money;

if (!sscanf(params, "fi", range, money))
{
    // code..
}
else if (!sscanf(params, "ri", id, money))
{
    // code..
}
else SendClientMessage(playerid, -1, "Usage: /giveweapon [playerid/range] [money]");