結果
問題 | No.1817 Reversed Edges |
ユーザー | shojin_pro |
提出日時 | 2022-01-21 22:19:07 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 727 ms / 2,000 ms |
コード長 | 4,483 bytes |
コンパイル時間 | 3,209 ms |
コンパイル使用メモリ | 77,116 KB |
実行使用メモリ | 96,884 KB |
最終ジャッジ日時 | 2023-08-17 06:28:07 |
合計ジャッジ時間 | 16,598 ms |
ジャッジサーバーID (参考情報) |
judge11 / judge12 |
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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 | 44 ms
49,628 KB |
testcase_01 | AC | 44 ms
49,764 KB |
testcase_02 | AC | 44 ms
49,572 KB |
testcase_03 | AC | 43 ms
49,704 KB |
testcase_04 | AC | 44 ms
49,624 KB |
testcase_05 | AC | 43 ms
50,100 KB |
testcase_06 | AC | 43 ms
49,624 KB |
testcase_07 | AC | 557 ms
78,544 KB |
testcase_08 | AC | 328 ms
63,132 KB |
testcase_09 | AC | 513 ms
69,740 KB |
testcase_10 | AC | 359 ms
64,212 KB |
testcase_11 | AC | 415 ms
65,264 KB |
testcase_12 | AC | 715 ms
78,776 KB |
testcase_13 | AC | 717 ms
78,656 KB |
testcase_14 | AC | 720 ms
78,488 KB |
testcase_15 | AC | 709 ms
78,856 KB |
testcase_16 | AC | 722 ms
79,276 KB |
testcase_17 | AC | 727 ms
78,652 KB |
testcase_18 | AC | 727 ms
78,436 KB |
testcase_19 | AC | 723 ms
78,632 KB |
testcase_20 | AC | 722 ms
78,756 KB |
testcase_21 | AC | 714 ms
78,760 KB |
testcase_22 | AC | 518 ms
79,076 KB |
testcase_23 | AC | 530 ms
78,772 KB |
testcase_24 | AC | 543 ms
96,884 KB |
ソースコード
import java.util.*; import java.io.*; public class Main { static FastScanner sc = new FastScanner(System.in); static PrintWriter pw = new PrintWriter(System.out); static StringBuilder sb = new StringBuilder(); static long mod = (long) 1e9 + 7; public static void main(String[] args) throws Exception { solve(); pw.flush(); } static ArrayList<ArrayList<Integer>> arr = new ArrayList<>(); static int[] depth; static int[] back; public static void solve() { int n = sc.nextInt(); depth = new int[n]; back = new int[n]; Arrays.fill(depth,-1); Arrays.fill(back,-1); for(int i = 0; i < n; i++){ arr.add(new ArrayList<>()); } for(int i = 0; i < n-1; i++){ int s = sc.nextInt()-1; int t = sc.nextInt()-1; arr.get(s).add(t); arr.get(t).add(s); } depth[0] = 0; back[0] = 0; int is0 = dfs(0,0,0); for(int i = 0; i < n; i++){ //pw.println(is0 + " " + depth[i] + " " + back[i]); pw.println(is0 + depth[i] - back[i]*2); } } static int dfs(int step, int now, int b){ int ret = 0; for(int next : arr.get(now)){ if(depth[next] == -1){ depth[next] = step+1; if(now > next){ ret++; back[next] = b+1; ret += dfs(step+1,next,b+1); }else{ back[next] = b; ret += dfs(step+1,next,b); } } } return ret; } static class GeekInteger { public static void save_sort(int[] array) { shuffle(array); Arrays.sort(array); } public static int[] shuffle(int[] array) { int n = array.length; Random random = new Random(); for (int i = 0, j; i < n; i++) { j = i + random.nextInt(n - i); int randomElement = array[j]; array[j] = array[i]; array[i] = randomElement; } return array; } public static void save_sort(long[] array) { shuffle(array); Arrays.sort(array); } public static long[] shuffle(long[] array) { int n = array.length; Random random = new Random(); for (int i = 0, j; i < n; i++) { j = i + random.nextInt(n - i); long randomElement = array[j]; array[j] = array[i]; array[i] = randomElement; } return array; } } } class FastScanner { private BufferedReader reader = null; private StringTokenizer tokenizer = null; public FastScanner(InputStream in) { reader = new BufferedReader(new InputStreamReader(in)); tokenizer = null; } public FastScanner(FileReader in) { reader = new BufferedReader(in); tokenizer = null; } public String next() { if (tokenizer == null || !tokenizer.hasMoreTokens()) { try { tokenizer = new StringTokenizer(reader.readLine()); } catch (IOException e) { throw new RuntimeException(e); } } return tokenizer.nextToken(); } public String nextLine() { if (tokenizer == null || !tokenizer.hasMoreTokens()) { try { return reader.readLine(); } catch (IOException e) { throw new RuntimeException(e); } } return tokenizer.nextToken("\n"); } public long nextLong() { return Long.parseLong(next()); } public int nextInt() { return Integer.parseInt(next()); } public double nextDouble() { return Double.parseDouble(next()); } public String[] nextArray(int n) { String[] a = new String[n]; for (int i = 0; i < n; i++) a[i] = next(); return a; } public int[] nextIntArray(int n) { int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = nextInt(); return a; } public long[] nextLongArray(int n) { long[] a = new long[n]; for (int i = 0; i < n; i++) a[i] = nextLong(); return a; } }