{"id":3782,"date":"2018-11-09T23:54:27","date_gmt":"2018-11-09T20:54:27","guid":{"rendered":"http:\/\/java.mazurok.com\/?p=3782"},"modified":"2018-11-19T21:44:46","modified_gmt":"2018-11-19T18:44:46","slug":"e-olymp-4000-%d0%be%d0%b1%d1%85%d0%be%d0%b4-%d0%b2-%d0%b3%d0%bb%d1%83%d0%b1%d0%b8%d0%bd%d1%83","status":"publish","type":"post","link":"https:\/\/java.mazurok.com\/?p=3782","title":{"rendered":"e-olymp 4000. \u041e\u0431\u0445\u043e\u0434 \u0432 \u0433\u043b\u0443\u0431\u0438\u043d\u0443"},"content":{"rendered":"

\u0417\u0430\u0434\u0430\u0447\u0430<\/h1>\n

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\u0412\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435<\/em><\/h2>\n

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\u0412\u044b\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435<\/em><\/h2>\n

\u0412\u044b\u0432\u0435\u0434\u0438\u0442\u0435 \u0438\u0441\u043a\u043e\u043c\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0432\u0435\u0440\u0448\u0438\u043d.<\/p>\n

\u0422\u0435\u0441\u0442\u044b<\/h2>\n\n\n\n\n\n\n\n\n
\u0412\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435<\/strong><\/td>\n\u0412\u044b\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435<\/strong><\/td>\n<\/tr>\n
\n3 1
\n0 0 1
\n0 0 0
\n1 0 0\n<\/td>\n		\n2\n<\/td>\n<\/tr>\n
\n4 2
\n0 1 0 0
\n1 0 0 1
\n0 0 0 1
\n0 1 1 0\n<\/td>\n		\n4\n<\/td>\n<\/tr>\n
\n6 2
\n0 1 0 0 0 1
\n1 0 0 0 0 1
\n0 0 0 1 1 0
\n0 0 1 0 0 0
\n0 0 1 0 0 0
\n1 1 0 0 0 0\n<\/td>\n		\n3\n<\/td>\n<\/tr>\n
\n4 2
\n0 0 0 0
\n0 0 0 0
\n0 0 0 0
\n0 0 0 0\n<\/td>\n		\n1\n<\/td>\n<\/tr>\n
\n5 3
\n0 1 0 0 1
\n1 0 1 0 1
\n0 1 0 1 0
\n0 0 1 0 1
\n1 1 0 1 0\n<\/td>\n		\n5\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u041a\u043e\u0434 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b<\/h2>\n
\r\nimport java.util.ArrayList;\r\nimport java.util.Scanner;\r\n\r\npublic class Main {\r\n\r\n    private static int count = 0;\r\n\r\n    private static void dfs(ArrayList<Integer>[] adj, boolean[] was, int v) {\r\n        count++;\r\n        for (int e: adj[v]) {\r\n            if (!was[e]) {\r\n                was[e] = true;\r\n                dfs(adj, was, e);\r\n            }\r\n        }\r\n    }\r\n\r\n    private static void dfs(ArrayList<Integer>[] adj, int v) {\r\n        boolean[] was = new boolean[adj.length];\r\n        was[v] = true;\r\n        dfs(adj, was, v);\r\n    }\r\n\r\n    public static void main(String[] args) {\r\n        Scanner scanner = new Scanner(System.in);\r\n        int n = scanner.nextInt();\r\n        int v = scanner.nextInt() - 1;\r\n        ArrayList<Integer>[] adj = (ArrayList<Integer>[]) new ArrayList[n];\r\n        for (int i = 0; i < n; i++) {\r\n            adj[i] = new ArrayList<>();\r\n            for (int j = 0; j < n; j++) {\r\n                int d = scanner.nextInt();\r\n                if (d == 1) {\r\n                    adj[i].add(j);\r\n                }\r\n            }\r\n        }\r\n        dfs(adj, v);\r\n        System.out.println(count);\r\n    }\r\n}<\/pre>\n
\u0420\u0435\u0448\u0435\u043d\u0438\u0435 \u0437\u0430\u0434\u0430\u0447\u0438<\/h2>\n
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\u0421\u0441\u044b\u043b\u043a\u0438<\/h2>\n
\u0423\u0441\u043b\u043e\u0432\u0438\u0435 \u0437\u0430\u0434\u0430\u0447\u0438 \u043d\u0430 e-olymp<\/a>
\n\u0420\u0435\u0448\u0435\u043d\u0438\u0435 \u043d\u0430 e-olymp<\/a>
\n\u041a\u043e\u0434 \u0440\u0435\u0448\u0435\u043d\u0438\u044f \u043d\u0430 Ideone<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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