結果

問題 No.479 頂点は要らない
ユーザー uwiuwi
提出日時 2017-01-28 01:36:20
言語 Java21
(openjdk 21)
結果
AC  
実行時間 190 ms / 1,500 ms
コード長 3,947 bytes
コンパイル時間 4,327 ms
コンパイル使用メモリ 80,108 KB
実行使用メモリ 59,224 KB
最終ジャッジ日時 2023-08-25 12:33:15
合計ジャッジ時間 9,922 ms
ジャッジサーバーID
（参考情報） 		judge15 / judge13
このコードへのチャレンジ
（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 42 ms
49,260 KB
testcase_01 AC 41 ms
49,280 KB
testcase_02 AC 42 ms
49,324 KB
testcase_03 AC 42 ms
49,352 KB
testcase_04 AC 42 ms
49,320 KB
testcase_05 AC 42 ms
49,256 KB
testcase_06 AC 42 ms
49,784 KB
testcase_07 AC 42 ms
49,664 KB
testcase_08 AC 42 ms
49,260 KB
testcase_09 AC 41 ms
47,424 KB
testcase_10 AC 42 ms
49,452 KB
testcase_11 AC 42 ms
49,320 KB
testcase_12 AC 41 ms
49,272 KB
testcase_13 AC 43 ms
49,188 KB
testcase_14 AC 41 ms
49,168 KB
testcase_15 AC 41 ms
49,152 KB
testcase_16 AC 42 ms
49,484 KB
testcase_17 AC 41 ms
49,424 KB
testcase_18 AC 42 ms
49,856 KB
testcase_19 AC 47 ms
49,864 KB
testcase_20 AC 47 ms
49,396 KB
testcase_21 AC 44 ms
49,244 KB
testcase_22 AC 48 ms
47,300 KB
testcase_23 AC 44 ms
49,244 KB
testcase_24 AC 45 ms
49,460 KB
testcase_25 AC 47 ms
49,404 KB
testcase_26 AC 189 ms
58,836 KB
testcase_27 AC 190 ms
59,224 KB
testcase_28 AC 176 ms
57,812 KB
testcase_29 AC 155 ms
56,644 KB
testcase_30 AC 153 ms
56,692 KB
testcase_31 AC 156 ms
56,420 KB
testcase_32 AC 150 ms
56,600 KB
testcase_33 AC 156 ms
55,872 KB
testcase_34 AC 160 ms
57,092 KB
testcase_35 AC 131 ms
54,784 KB
testcase_36 AC 98 ms
52,344 KB
testcase_37 AC 162 ms
55,332 KB
testcase_38 AC 136 ms
55,180 KB
testcase_39 AC 123 ms
55,240 KB
testcase_40 AC 154 ms
56,888 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

package contest170127;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;

public class N479 {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int n = ni(), m = ni();
		int[] from = new int[m];
		int[] to = new int[m];
		for(int i = 0;i < m;i++){
			from[i] = ni();
			to[i] = ni();
		}
		int[][] g = packU(n, from, to);
		int[] deg = new int[n];
		for(int i = 0;i < n;i++){
			deg[i] = g[i].length;
		}
		boolean[] bought = new boolean[n];
		boolean lz = true;
		outer:
		for(int i = 0;i < n;i++){
			for(int e : g[n-1-i]){
				if(e > n-1-i && !bought[e]){
					out.print(1);
					bought[n-1-i] = true;
					lz = false;
					continue outer;
				}
			}
			if(lz)continue;
			out.print(0);
		}
		out.println();
	}
	
	static int[][] packU(int n, int[] from, int[] to) {
		int[][] g = new int[n][];
		int[] p = new int[n];
		for (int f : from)
			p[f]++;
		for (int t : to)
			p[t]++;
		for (int i = 0; i < n; i++)
			g[i] = new int[p[i]];
		for (int i = 0; i < from.length; i++) {
			g[from[i]][--p[from[i]]] = to[i];
			g[to[i]][--p[to[i]]] = from[i];
		}
		return g;
	}
	
	void run() throws Exception
	{
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		long s = System.currentTimeMillis();
		solve();
		out.flush();
		if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//		Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
//			@Override
//			public void run() {
//				long s = System.currentTimeMillis();
//				solve();
//				out.flush();
//				if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//			}
//		};
//		t.start();
//		t.join();
	}
	
	public static void main(String[] args) throws Exception { new N479().run(); }
	
	private byte[] inbuf = new byte[1024];
	public 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 int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private long[] nal(int n)
	{
		long[] a = new long[n];
		for(int i = 0;i < n;i++)a[i] = nl();
		return a;
	}
	
	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[][] nmi(int n, int m) {
		int[][] map = new int[n][];
		for(int i = 0;i < n;i++)map[i] = na(m);
		return map;
	}
	
	private int ni() { return (int)nl(); }
	
	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();
		}
	}
	
	private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
}
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