結果
問題 |
No.1170 Never Want to Walk
|
ユーザー |
![]() |
提出日時 | 2021-12-07 10:05:35 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 346 ms / 2,000 ms |
コード長 | 2,772 bytes |
コンパイル時間 | 2,031 ms |
コンパイル使用メモリ | 77,828 KB |
実行使用メモリ | 65,812 KB |
最終ジャッジ日時 | 2024-07-07 10:23:23 |
合計ジャッジ時間 | 10,008 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 37 |
ソースコード
import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int a = sc.nextInt(); int b = sc.nextInt(); int[] values = new int[n]; for (int i = 0; i < n; i++) { values[i] = sc.nextInt(); } int lastRight = 0; int left = 0; int right = 0; UnionFindTree uft = new UnionFindTree(n); for (int i = 0; i < n - 1; i++) { lastRight = right; while (left < n && values[left] - values[i] < a) { left++; } while (right < n - 1 && values[right + 1] - values[i] <= b) { right++; } for (int j = Math.max(lastRight, left); j <= right; j++) { uft.unite(i, j); } } StringBuilder sb = new StringBuilder(); for (int i = 0; i < n; i++) { sb.append(uft.getCount(i)).append("\n"); } System.out.print(sb); } static class UnionFindTree { int[] parents; int[] counts; public UnionFindTree(int size) { parents = new int[size]; counts = new int[size]; for (int i = 0; i < size; i++) { parents[i] = i; counts[i] = 1; } } public int find(int x) { if (x == parents[x]) { return x; } else { return parents[x] = find(parents[x]); } } public boolean same(int x, int y) { return find(x) == find(y); } public void unite(int x, int y) { int xx = find(x); int yy = find(y); if (xx == yy) { return; } parents[yy] = xx; counts[xx] += counts[yy]; } public int getCount(int x) { return counts[find(x)]; } } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public String next() throws Exception { if (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }