結果
問題 | No.768 Tapris and Noel play the game on Treeone |
ユーザー | hiromi_ayase |
提出日時 | 2018-12-17 03:56:56 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,037 bytes |
コンパイル時間 | 5,539 ms |
コンパイル使用メモリ | 81,660 KB |
実行使用メモリ | 75,008 KB |
最終ジャッジ日時 | 2023-10-25 23:26:12 |
合計ジャッジ時間 | 16,461 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge13 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 80 ms
54,260 KB |
testcase_01 | AC | 81 ms
51,192 KB |
testcase_02 | AC | 80 ms
54,260 KB |
testcase_03 | AC | 112 ms
54,848 KB |
testcase_04 | AC | 119 ms
53,508 KB |
testcase_05 | AC | 109 ms
55,116 KB |
testcase_06 | AC | 108 ms
55,036 KB |
testcase_07 | AC | 523 ms
64,716 KB |
testcase_08 | AC | 379 ms
62,504 KB |
testcase_09 | AC | 424 ms
64,112 KB |
testcase_10 | AC | 359 ms
62,732 KB |
testcase_11 | AC | 723 ms
75,008 KB |
testcase_12 | AC | 727 ms
73,468 KB |
testcase_13 | AC | 710 ms
73,384 KB |
testcase_14 | AC | 748 ms
73,068 KB |
testcase_15 | AC | 773 ms
73,596 KB |
testcase_16 | AC | 749 ms
73,464 KB |
testcase_17 | AC | 764 ms
73,868 KB |
testcase_18 | TLE | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
20evil_special_uni1.txt | -- | - |
20evil_special_uni2.txt | -- | - |
ソースコード
public class Main { private static void solve() { int n = ni(); int[] from = new int[n - 1]; int[] to = new int[n - 1]; int[] w = new int[n - 1]; for (int i = 0; i < n - 1; i ++) { from[i] = ni() - 1; to[i] = ni() - 1; } int[][][] g = packWU(n, from, to, w); int[] ret = new int[n]; int ptr = 0; for (int i = 0; i < n; i ++) { if (!dfs(i, -1, g)) { ret[ptr ++] = i + 1; } } System.out.println(ptr); for (int i = 0; i < ptr; i ++) { System.out.println(ret[i]); } } private static boolean dfs(int now, int pre, int[][][] g) { boolean flg = false; for (int[] e : g[now]){ int next = e[0]; if (next == pre) { continue; } if (g[next].length == 1) { e[1] = 1; flg = true; } else { boolean ret = (e[1] == 0) ? !dfs(next, now, g) : (e[1] == 1); e[1] = ret ? 1 : 2; flg |= ret; } } return flg; } public static int[][][] packWU(int n, int[] from, int[] to, int[] w){ return packWU(n, from, to, w, from.length); } public static int[][][] packWU(int n, int[] from, int[] to, int[] w, int sup) { int[][][] g = new int[n][][]; int[] p = new int[n]; for(int i = 0;i < sup;i++)p[from[i]]++; for(int i = 0;i < sup;i++)p[to[i]]++; for(int i = 0;i < n;i++)g[i] = new int[p[i]][2]; for(int i = 0;i < sup;i++){ --p[from[i]]; g[from[i]][p[from[i]]][0] = to[i]; g[from[i]][p[from[i]]][1] = w[i]; --p[to[i]]; g[to[i]][p[to[i]]][0] = from[i]; g[to[i]][p[to[i]]][1] = w[i]; } return g; } public static void main(String[] args) { new Thread(null, new Runnable() { @Override public void run() { long start = System.currentTimeMillis(); String debug = args.length > 0 ? args[0] : null; if (debug != null) { try { is = java.nio.file.Files.newInputStream(java.nio.file.Paths.get(debug)); } catch (Exception e) { throw new RuntimeException(e); } } reader = new java.io.BufferedReader(new java.io.InputStreamReader(is), 32768); solve(); out.flush(); tr((System.currentTimeMillis() - start) + "ms"); } }, "", 64000000).start(); } private static java.io.InputStream is = System.in; private static java.io.PrintWriter out = new java.io.PrintWriter(System.out); private static java.util.StringTokenizer tokenizer = null; private static java.io.BufferedReader reader; public static String next() { while (tokenizer == null || !tokenizer.hasMoreTokens()) { try { tokenizer = new java.util.StringTokenizer(reader.readLine()); } catch (Exception e) { throw new RuntimeException(e); } } return tokenizer.nextToken(); } private static double nd() { return Double.parseDouble(next()); } private static long nl() { return Long.parseLong(next()); } private static int[] na(int n) { int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = ni(); return a; } private static char[] ns() { return next().toCharArray(); } private static long[] nal(int n) { long[] a = new long[n]; for (int i = 0; i < n; i++) a[i] = nl(); return a; } private static int[][] ntable(int n, int m) { int[][] table = new int[n][m]; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { table[i][j] = ni(); } } return table; } private static int[][] nlist(int n, int m) { int[][] table = new int[m][n]; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { table[j][i] = ni(); } } return table; } private static int ni() { return Integer.parseInt(next()); } private static void tr(Object... o) { if (is != System.in) System.out.println(java.util.Arrays.deepToString(o)); } }