結果

問題 No.479 頂点は要らない
ユーザー GrenacheGrenache
提出日時 2017-01-27 23:06:15
言語 Java21
(openjdk 21)
結果
AC  
実行時間 623 ms / 1,500 ms
コード長 4,577 bytes
コンパイル時間 3,908 ms
コンパイル使用メモリ 76,784 KB
実行使用メモリ 87,564 KB
最終ジャッジ日時 2023-08-25 04:38:48
合計ジャッジ時間 13,844 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge12
このコードへのチャレンジ（β）

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
49,868 KB
testcase_01 AC 45 ms
49,432 KB
testcase_02 AC 44 ms
49,964 KB
testcase_03 AC 44 ms
49,568 KB
testcase_04 AC 44 ms
49,616 KB
testcase_05 AC 43 ms
49,576 KB
testcase_06 AC 44 ms
49,464 KB
testcase_07 AC 44 ms
49,780 KB
testcase_08 AC 44 ms
49,536 KB
testcase_09 AC 44 ms
47,592 KB
testcase_10 AC 43 ms
49,616 KB
testcase_11 AC 44 ms
49,564 KB
testcase_12 AC 44 ms
49,348 KB
testcase_13 AC 44 ms
49,460 KB
testcase_14 AC 45 ms
49,360 KB
testcase_15 AC 44 ms
49,444 KB
testcase_16 AC 44 ms
49,564 KB
testcase_17 AC 44 ms
49,700 KB
testcase_18 AC 44 ms
49,892 KB
testcase_19 AC 76 ms
50,812 KB
testcase_20 AC 75 ms
50,428 KB
testcase_21 AC 57 ms
50,392 KB
testcase_22 AC 77 ms
50,704 KB
testcase_23 AC 65 ms
50,604 KB
testcase_24 AC 75 ms
50,284 KB
testcase_25 AC 72 ms
50,148 KB
testcase_26 AC 620 ms
87,564 KB
testcase_27 AC 623 ms
87,376 KB
testcase_28 AC 415 ms
86,028 KB
testcase_29 AC 365 ms
76,984 KB
testcase_30 AC 368 ms
78,008 KB
testcase_31 AC 365 ms
79,712 KB
testcase_32 AC 351 ms
79,224 KB
testcase_33 AC 504 ms
78,172 KB
testcase_34 AC 554 ms
80,228 KB
testcase_35 AC 502 ms
70,640 KB
testcase_36 AC 309 ms
62,644 KB
testcase_37 AC 516 ms
78,832 KB
testcase_38 AC 470 ms
71,812 KB
testcase_39 AC 365 ms
66,792 KB
testcase_40 AC 426 ms
75,408 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 # 

import java.io.*;
import java.util.*;


public class Main_yukicoder479 {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		int n = sc.nextInt();
		int m = sc.nextInt();

		List<Set<Integer>> edges = new ArrayList<>();
		for (int i = 0; i < n; i++) {
			edges.add(new HashSet<>());
		}

		for (int i = 0; i < m; i++) {
			int a = sc.nextInt();
			int b = sc.nextInt();

			edges.get(a).add(b);
			edges.get(b).add(a);
		}

		BitSet ret = new BitSet(n);
		for (int i = n - 1; i >= 0; i--) {
			if (ret.get(i)) {
				for (int e : edges.get(i)) {
					edges.get(e).remove(i);
				}
			} else {
				for (int e : edges.get(i)) {
					ret.set(e);
					edges.get(e).remove(i);
				}
			}
		}

		for (int i = ret.previousSetBit(n); i >= 0; i--) {
			if (ret.get(i)) {
				pr.print('1');
			} else {
				pr.print('0');
			}
		}
		pr.println();
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);

		solve();

		pr.close();
		sc.close();
	}

	@SuppressWarnings("unused")
	private static class Scanner {
		BufferedReader br;

		Scanner (InputStream in) {
			br = new BufferedReader(new InputStreamReader(in));
		}

		private boolean isPrintable(int ch) {
			return ch >= '!' && ch <= '~';
		}

		private boolean isCRLF(int ch) {
			return ch == '\n' || ch == '\r' || ch == -1;
		}

		private int nextPrintable() {
			try {
				int ch;
				while (!isPrintable(ch = br.read())) {
					if (ch == -1) {
						throw new NoSuchElementException();
					}
				}

				return ch;
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		String next() {
			try {
				int ch = nextPrintable();
				StringBuilder sb = new StringBuilder();
				do {
					sb.appendCodePoint(ch);
				} while (isPrintable(ch = br.read()));

				return sb.toString();
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		int nextInt() {
			try {
				// parseInt from Integer.parseInt()
				boolean negative = false;
				int res = 0;
				int limit = -Integer.MAX_VALUE;
				int radix = 10;

				int fc = nextPrintable();
				if (fc < '0') {
					if (fc == '-') {
						negative = true;
						limit = Integer.MIN_VALUE;
					} else if (fc != '+') {
						throw new NumberFormatException();
					}
					fc = br.read();
				}
				int multmin = limit / radix;

				int ch = fc;
				do {
					int digit = ch - '0';
					if (digit < 0 || digit >= radix) {
						throw new NumberFormatException();
					}
					if (res < multmin) {
						throw new NumberFormatException();
					}
					res *= radix;
					if (res < limit + digit) {
						throw new NumberFormatException();
					}
					res -= digit;

				} while (isPrintable(ch = br.read()));

				return negative ? res : -res;
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		long nextLong() {
			try {
				// parseLong from Long.parseLong()
				boolean negative = false;
				long res = 0;
				long limit = -Long.MAX_VALUE;
				int radix = 10;

				int fc = nextPrintable();
				if (fc < '0') {
					if (fc == '-') {
						negative = true;
						limit = Long.MIN_VALUE;
					} else if (fc != '+') {
						throw new NumberFormatException();
					}
					fc = br.read();
				}
				long multmin = limit / radix;

				int ch = fc;
				do {
					int digit = ch - '0';
					if (digit < 0 || digit >= radix) {
						throw new NumberFormatException();
					}
					if (res < multmin) {
						throw new NumberFormatException();
					}
					res *= radix;
					if (res < limit + digit) {
						throw new NumberFormatException();
					}
					res -= digit;

				} while (isPrintable(ch = br.read()));

				return negative ? res : -res;
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		float nextFloat() {
			return Float.parseFloat(next());
		}

		double nextDouble() {
			return Double.parseDouble(next());
		}

		String nextLine() {
			try {
				int ch;
				while (isCRLF(ch = br.read())) {
					if (ch == -1) {
						throw new NoSuchElementException();
					}
				}
				StringBuilder sb = new StringBuilder();
				do {
					sb.appendCodePoint(ch);
				} while (!isCRLF(ch = br.read()));

				return sb.toString();
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		void close() {
			try {
				br.close();
			} catch (IOException e) {
//				throw new NoSuchElementException();
			}
		}
	}

	private static class Printer extends PrintWriter {
		Printer(PrintStream out) {
			super(out);
		}
	}
}
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