結果

問題 No.416 旅行会社
ユーザー 37zigen37zigen
提出日時 2016-08-28 04:18:42
言語 Java21
(openjdk 21)
結果
AC  
実行時間 786 ms / 4,000 ms
コード長 6,377 bytes
コンパイル時間 4,386 ms
コンパイル使用メモリ 87,348 KB
実行使用メモリ 101,528 KB
最終ジャッジ日時 2024-05-08 15:14:21
合計ジャッジ時間 14,410 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge5
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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 482 ms
78,272 KB
testcase_01 AC 53 ms
38,012 KB
testcase_02 AC 55 ms
38,004 KB
testcase_03 AC 54 ms
38,124 KB
testcase_04 AC 56 ms
38,040 KB
testcase_05 AC 55 ms
37,996 KB
testcase_06 AC 53 ms
38,040 KB
testcase_07 AC 69 ms
38,292 KB
testcase_08 AC 87 ms
39,624 KB
testcase_09 AC 154 ms
46,968 KB
testcase_10 AC 502 ms
77,040 KB
testcase_11 AC 509 ms
77,980 KB
testcase_12 AC 536 ms
78,344 KB
testcase_13 AC 504 ms
78,172 KB
testcase_14 AC 743 ms
101,200 KB
testcase_15 AC 744 ms
101,336 KB
testcase_16 AC 745 ms
101,528 KB
testcase_17 AC 786 ms
101,384 KB
testcase_18 AC 746 ms
101,144 KB
testcase_19 AC 641 ms
78,132 KB
testcase_20 AC 725 ms
80,468 KB
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ソースコード

diff # 

package No400番台;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.InputMismatchException;

public class Q416_2 {
	static InputStream is;
	static PrintWriter out;
	static String INPUT = "";

	void solver() {
		int N = ni(), M = ni(), Q = ni();
		ArrayList<Edge>[] g = new ArrayList[N];
		for (int i = 0; i < N; i++)
			g[i] = new ArrayList<>();
		long[] ref = new long[Q];

		int[] A = new int[M], B = new int[M];
		for (int i = 0; i < M; i++) {
			A[i] = ni() - 1;
			B[i] = ni() - 1;
		}
		for (int i = 0; i < Q; i++) {
			int C = ni() - 1, D = ni() - 1;
			ref[i] = ((long) C << 32) | D;
			g[C].add(new Edge(C, D, i + 1));
			g[D].add(new Edge(D, C, i + 1));
		}
		radixSort(ref);
		for (int i = 0; i < M; i++) {
			int idx = Arrays.binarySearch(ref, ((long) A[i] << 32) | B[i]);
			if (idx < 0) {
				g[A[i]].add(new Edge(A[i], B[i], Q + 1));
				g[B[i]].add(new Edge(B[i], A[i], Q + 1));
			}
		}

		ArrayDeque<Integer>[] pending = new ArrayDeque[Q + 2];
		for (int i = 0; i < Q + 2; i++)
			pending[i] = new ArrayDeque<>();
		pending[Q + 1].add(0);
		int[] d = new int[N];
		boolean[] checked = new boolean[N];
		for (int i = Q + 1; i >= 1; i--) {
			while (!pending[i].isEmpty()) {
				int v = pending[i].poll();
				if (checked[v])
					continue;
				d[v] = i;
				checked[v] = true;
				for (Edge e : g[v]) {
					if (checked[e.dst])
						continue;
					if (e.event_time >= i) {
						pending[i].add(e.dst);
					} else {
						pending[e.event_time].add(e.dst);
					}
				}
			}
		}
		for (int i = 1; i < N; i++) {
			if (d[i] == Q + 1) {
				out.println(-1);
			} else {
				out.println(d[i]);
			}
		}

	}
	public static long[] radixSort(long[] f)
	{
		long[] to = new long[f.length];
		{
			int[] b = new int[65537];
			for(int i = 0;i < f.length;i++)b[1+(int)(f[i]&0xffff)]++;
			for(int i = 1;i <= 65536;i++)b[i]+=b[i-1];
			for(int i = 0;i < f.length;i++)to[b[(int)(f[i]&0xffff)]++] = f[i];
			long[] d = f; f = to;to = d;
		}
		{
			int[] b = new int[65537];
			for(int i = 0;i < f.length;i++)b[1+(int)(f[i]>>>16&0xffff)]++;
			for(int i = 1;i <= 65536;i++)b[i]+=b[i-1];
			for(int i = 0;i < f.length;i++)to[b[(int)(f[i]>>>16&0xffff)]++] = f[i];
			long[] d = f; f = to;to = d;
		}
		{
			int[] b = new int[65537];
			for(int i = 0;i < f.length;i++)b[1+(int)(f[i]>>>32&0xffff)]++;
			for(int i = 1;i <= 65536;i++)b[i]+=b[i-1];
			for(int i = 0;i < f.length;i++)to[b[(int)(f[i]>>>32&0xffff)]++] = f[i];
			long[] d = f; f = to;to = d;
		}
		{
			int[] b = new int[65537];
			for(int i = 0;i < f.length;i++)b[1+(int)(f[i]>>>48&0xffff)]++;
			for(int i = 1;i <= 65536;i++)b[i]+=b[i-1];
			for(int i = 0;i < f.length;i++)to[b[(int)(f[i]>>>48&0xffff)]++] = f[i];
			long[] d = f; f = to;to = d;
		}
		return f;
	}

	class Edge {
		int src;
		int dst;
		int event_time;

		Edge(int src, int dst, int event_time) {
			this.src = src;
			this.dst = dst;
			this.event_time = event_time;
		}
	}
	public static class DJSet {
		int n;
		int[] d;
		int[] next;
		int[] last;

		DJSet(int n) {
			this.n = n;
			d = new int[n];
			next = new int[n];
			last = new int[n];
			Arrays.fill(d, -1);
			Arrays.fill(next, -1);
			for (int i = 0; i < n; i++) {
				last[i] = i;
			}
		}

		int root(int x) {
			return d[x] < 0 ? x : (d[x] = root(d[x]));
		}

		boolean setUnion(int x, int y) {
			x = root(x);
			y = root(y);
			if (x != y) {
				if (d[y] < d[x]) {
					int d = x;
					x = y;
					y = d;
				}
				d[x] += d[y];
				d[y] = x;
				next[last[x]] = y;
				last[x] = last[y];
			}
			return x != y;
		}

		boolean equiv(int x, int y) {
			return root(x) == root(y);
		}

		int size(int x) {
			return d[root(x)] * (-1);
		}

		int count() {
			int ct = 0;
			for (int u : d) {
				if (u < 0)
					ct++;
			}
			return ct;
		}
	}

	void run() throws Exception
	{
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);

		long s = System.currentTimeMillis();
		solver();
		out.flush();
		if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
	}
	private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
	public static void main(String[] args) throws Exception { new Q416_2().run(); }

	private byte[] inbuf = new byte[1024];
	private int lenbuf = 0, ptrbuf = 0;

	private int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}

	private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
	private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }

	private double nd() { return Double.parseDouble(ns()); }
	private char nc() { return (char)skip(); }

	private String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}

	private char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}

	private char[][] nm(int n, int m)
	{
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}

	private int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}

	private int ni()
	{
		int num = 0, b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}

		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}

	private long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}

		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}

}
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