結果
問題 | No.479 頂点は要らない |
ユーザー | ぴろず |
提出日時 | 2017-01-27 22:40:49 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 287 ms / 1,500 ms |
コード長 | 4,640 bytes |
コンパイル時間 | 2,613 ms |
コンパイル使用メモリ | 80,488 KB |
実行使用メモリ | 67,588 KB |
最終ジャッジ日時 | 2024-06-06 04:51:58 |
合計ジャッジ時間 | 8,441 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 54 ms
49,832 KB |
testcase_01 | AC | 54 ms
50,392 KB |
testcase_02 | AC | 55 ms
49,968 KB |
testcase_03 | AC | 54 ms
50,088 KB |
testcase_04 | AC | 54 ms
50,304 KB |
testcase_05 | AC | 55 ms
50,260 KB |
testcase_06 | AC | 54 ms
50,228 KB |
testcase_07 | AC | 53 ms
50,316 KB |
testcase_08 | AC | 55 ms
49,880 KB |
testcase_09 | AC | 53 ms
50,272 KB |
testcase_10 | AC | 53 ms
50,424 KB |
testcase_11 | AC | 53 ms
50,252 KB |
testcase_12 | AC | 53 ms
50,272 KB |
testcase_13 | AC | 54 ms
50,428 KB |
testcase_14 | AC | 54 ms
50,268 KB |
testcase_15 | AC | 55 ms
50,332 KB |
testcase_16 | AC | 56 ms
49,952 KB |
testcase_17 | AC | 54 ms
50,048 KB |
testcase_18 | AC | 54 ms
50,236 KB |
testcase_19 | AC | 57 ms
50,228 KB |
testcase_20 | AC | 58 ms
50,200 KB |
testcase_21 | AC | 56 ms
50,160 KB |
testcase_22 | AC | 57 ms
50,380 KB |
testcase_23 | AC | 56 ms
50,304 KB |
testcase_24 | AC | 56 ms
50,296 KB |
testcase_25 | AC | 56 ms
50,036 KB |
testcase_26 | AC | 280 ms
67,588 KB |
testcase_27 | AC | 287 ms
67,292 KB |
testcase_28 | AC | 204 ms
64,896 KB |
testcase_29 | AC | 168 ms
61,436 KB |
testcase_30 | AC | 160 ms
61,596 KB |
testcase_31 | AC | 153 ms
61,448 KB |
testcase_32 | AC | 162 ms
61,536 KB |
testcase_33 | AC | 203 ms
63,300 KB |
testcase_34 | AC | 204 ms
63,992 KB |
testcase_35 | AC | 162 ms
57,488 KB |
testcase_36 | AC | 141 ms
57,112 KB |
testcase_37 | AC | 215 ms
63,908 KB |
testcase_38 | AC | 180 ms
61,540 KB |
testcase_39 | AC | 159 ms
57,616 KB |
testcase_40 | AC | 179 ms
61,848 KB |
ソースコード
package no479; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.InputMismatchException; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { IO io = new IO(); int n = io.nextInt(); int m = io.nextInt(); ArrayList<Edge>[] g = new ArrayList[n]; for(int i=0;i<n;i++) { g[i] = new ArrayList<>(); } for(int i=0;i<m;i++) { int a = io.nextInt(); int b = io.nextInt(); Edge e1 = new Edge(b); Edge e2 = new Edge(a); e1.rev = e2; e2.rev = e1; g[a].add(e1); g[b].add(e2); } boolean[] ans = new boolean[n]; for(int i=n-1;i>=0;i--) { if (ans[i]) continue; for(Edge e: g[i]) { if (!e.used) { ans[e.to] = true; e.used = true; e.rev.used = true; } } } StringBuilder sb = new StringBuilder(); for(int i=n-1;i>=0;i--) { sb.append(ans[i] ? '1' : '0'); } String s = sb.toString(); s = s.substring(s.indexOf('1')); System.out.println(s); } } class Edge { int to; boolean used; Edge rev; public Edge(int to) { super(); this.to = to; } } class IO extends PrintWriter { private final InputStream in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; public IO() { this(System.in);} public IO(InputStream source) { super(System.out); this.in = source;} private boolean hasNextByte() { if (ptr < buflen) { return true; }else{ ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;} private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} private static boolean isNewLine(int c) { return c == '\n' || c == '\r';} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();} public boolean hasNextLine() { while(hasNextByte() && isNewLine(buffer[ptr])) ptr++; return hasNextByte();} public String next() { if (!hasNext()) { throw new NoSuchElementException(); } StringBuilder sb = new StringBuilder(); int b = readByte(); while(isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public char[] nextCharArray(int len) { if (!hasNext()) { throw new NoSuchElementException(); } char[] s = new char[len]; int i = 0; int b = readByte(); while(isPrintableChar(b)) { if (i == len) { throw new InputMismatchException(); } s[i++] = (char) b; b = readByte(); } return s; } public String nextLine() { if (!hasNextLine()) { throw new NoSuchElementException(); } StringBuilder sb = new StringBuilder(); int b = readByte(); while(!isNewLine(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) { throw new NoSuchElementException(); } long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while(true){ if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; }else if(b == -1 || !isPrintableChar(b)){ return minus ? -n : n; }else{ throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) { throw new NumberFormatException(); } return (int) nl; } public char nextChar() { if (!hasNext()) { throw new NoSuchElementException(); } return (char) readByte(); } public double nextDouble() { return Double.parseDouble(next());} 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;} public double[] nextDoubleArray(int n) { double[] a = new double[n]; for(int i=0;i<n;i++) a[i] = nextDouble(); return a;} public void nextIntArrays(int[]... a) { for(int i=0;i<a[0].length;i++) for(int j=0;j<a.length;j++) a[j][i] = nextInt();} public int[][] nextIntMatrix(int n,int m) { int[][] a = new int[n][]; for(int i=0;i<n;i++) a[i] = nextIntArray(m); return a;} public char[][] nextCharMap(int n,int m) { char[][] a = new char[n][]; for(int i=0;i<n;i++) a[i] = nextCharArray(m); return a;} public void close() { super.close(); try {in.close();} catch (IOException e) {}} }