private static void LockByes(EliminationNode rootNode)
        {
            var deciders = rootNode.FindDeciders(d => d.IsDecided && !d.Locked).ToList();

            foreach (var d in deciders)
            {
                d.Lock();
            }
        }
        private static void LockByes(EliminationNode rootNode)
        {
            var deciders = rootNode.FindDeciders(d => d.IsDecided && !d.Locked).ToList();

            foreach (var d in deciders)
            {
                d.Lock();
            }
        }