Пример #1
0
        public MyBitArray Clone()
        {
            MyBitArray res = new MyBitArray();

            for (int i = 0; i < 36; i++)
            {
                res.b[i] = b[i];
            }
            return(res);
        }
Пример #2
0
        public override bool Equals(object obj)
        {
            if (obj == null || !(obj is MyBitArray))
            {
                return(false);
            }

            MyBitArray mba = obj as MyBitArray;

            for (int i = 0; i < 36; i++)
            {
                if (mba.b[i] != b[i])
                {
                    return(false);
                }
            }
            return(true);
        }
Пример #3
0
        static void Solve(int casenum)
        {
            Console.Write("Case #{0}: ", casenum);
            string[] line = Console.ReadLine().Split();
            int      P    = int.Parse(line[0]);
            int      W    = int.Parse(line[1]);

            bool[,] w = new bool[P, P];
            line      = Console.ReadLine().Split();

            for (int i = 0; i < W; i++)
            {
                string[] x = line[i].Split(',');
                int      a = int.Parse(x[0]);
                int      b = int.Parse(x[1]);
                w[a, b] = w[b, a] = true;
            }

            if (w[0, 1])
            {
                int count = 0;
                for (int i = 1; i < P; i++)
                {
                    if (w[0, i])
                    {
                        count++;
                    }
                }

                Console.WriteLine("0 {0}", count);
                return;
            }

            //HashSet<MyBitArray> gg = new HashSet<MyBitArray>();
            //MyBitArray gga = new MyBitArray();
            //MyBitArray ggb = new MyBitArray();
            //gga.b[33] = true;
            //ggb.b[33] = true;
            //gg.Add(gga);
            //gg.Add(ggb);


            //Console.WriteLine();

            bool thr = false;
            HashSet <MyBitArray> curr = new HashSet <MyBitArray>();
            HashSet <MyBitArray> next = new HashSet <MyBitArray>();

            MyBitArray init = new MyBitArray();

            init.b[0] = true;
            curr.Add(init);

            while (!thr)
            {
                next.Clear();
                foreach (MyBitArray mba in curr)
                {
                    for (int i = 0; i < P; i++)
                    {
                        if (!mba.b[i])
                        {
                            continue;
                        }

                        for (int j = 0; j < P; j++)
                        {
                            if (mba.b[j])
                            {
                                continue;
                            }
                            if (!w[i, j])
                            {
                                continue;
                            }

                            MyBitArray m2 = mba.Clone();
                            m2.b[j] = true;

                            next.Add(m2);

                            if (w[j, 1])
                            {
                                thr = true;
                            }
                        }
                    }
                }

                HashSet <MyBitArray> tmp = curr;
                curr = next;
                next = tmp;
            }

            int maxat = -1;

            foreach (MyBitArray mba in curr)
            {
                bool isa = false;
                for (int i = 0; i < P && !isa; i++)
                {
                    if (mba.b[i] && w[i, 1])
                    {
                        isa = true;
                    }
                }

                if (!isa)
                {
                    continue;
                }

                int count = 0;
                for (int i = 0; i < P; i++)
                {
                    if (mba.b[i])
                    {
                        continue;
                    }

                    isa = false;
                    for (int j = 0; j < P && !isa; j++)
                    {
                        if (mba.b[j] && w[j, i])
                        {
                            isa = true;
                        }
                    }

                    if (isa)
                    {
                        count++;
                    }
                }

                maxat = Math.Max(maxat, count);
            }

            MyBitArray mbx  = curr.First();
            int        cnt2 = 0;

            for (int i = 1; i < P; i++)
            {
                if (mbx.b[i])
                {
                    cnt2++;
                }
            }

            Console.WriteLine("{0} {1}", cnt2, maxat);
        }