示例#1
0
        public IEnumerable <string> Generate(int vertexCount)
        {
            var bitsCount = (int)(((vertexCount + .0) / 2) * (vertexCount - 1));

            HashSet <long> codes = new HashSet <long>();

            long limit = 1L << (bitsCount + 1);

            for (var i = 0L; i < limit; i++)
            {
                var vector = GenerationUtils.ToAjentityVector(i, vertexCount);
                var graph  = new Graph(vector);

                if (!ConnectivityChecker.IsConnected(graph))
                {
                    continue;
                }

                var code = GenerationUtils.GetSimpleCode(vector);

                if (codes.Contains(code))
                {
                    continue;
                }

                foreach (var substitution in GenerationUtils.EnumerateAllSubstitutions(graph))
                {
                    var currentVector = GenerationUtils.UseSubstitution(vector, substitution);
                    var currentCode   = GenerationUtils.GetSimpleCode(currentVector);
                    codes.Add(currentCode);
                }

                yield return(graph.ToG6());
            }
        }
        public IEnumerable <string> Generate(int vertexCount)
        {
            var          bitsCount = (int)(((vertexCount + .0) / 2) * (vertexCount - 1));
            List <Graph> graphs    = new List <Graph>();

            long limit = 1L << (bitsCount + 1);

            for (var i = 0L; i < limit; i++)
            {
                var vector = GenerationUtils.ToAjentityVector(i, vertexCount);
                var graph  = new Graph(vector);

                if (!ConnectivityChecker.IsConnected(graph))
                {
                    continue;
                }

                bool isUnique = true;
                foreach (var substitution in GenerationUtils.EnumerateAllSubstitutions(graph))
                {
                    var currentVector = GenerationUtils.UseSubstitution(vector, substitution);
                    var currentGraph  = new Graph(currentVector);

                    if (graphs.Contains(currentGraph))
                    {
                        isUnique = false;
                        break;
                    }
                }

                if (isUnique)
                {
                    graphs.Add(graph);
                    yield return(graph.ToG6());
                }
            }
        }
        public IEnumerable <string> Generate(int vertexCount)
        {
            var  bitsCount = (int)(((vertexCount + .0) / 2) * (vertexCount - 1));
            long limit     = 1L << (bitsCount);

            for (var i = 0L; i < limit; i++)
            {
                var vector = GenerationUtils.ToAjentityVector(i, vertexCount);
                var graph  = new Graph(vector);

                if (!ConnectivityChecker.IsConnected(graph))
                {
                    continue;
                }

                var canonicalCode = IsomorphismChecker.GetCon(graph);
                var simpleCode    = GenerationUtils.GetBigIntegerSimpleCode(graph);

                if (canonicalCode == simpleCode)
                {
                    yield return(graph.ToG6());
                }
            }
        }