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 | 288 ms / 1,500 ms |
コード長 | 4,640 bytes |
コンパイル時間 | 2,567 ms |
コンパイル使用メモリ | 76,200 KB |
実行使用メモリ | 68,268 KB |
最終ジャッジ日時 | 2023-08-25 04:13:42 |
合計ジャッジ時間 | 8,679 ms |
ジャッジサーバーID (参考情報) |
judge11 / judge15 |
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
49,344 KB |
testcase_01 | AC | 44 ms
49,448 KB |
testcase_02 | AC | 44 ms
49,620 KB |
testcase_03 | AC | 44 ms
49,532 KB |
testcase_04 | AC | 45 ms
49,604 KB |
testcase_05 | AC | 43 ms
49,300 KB |
testcase_06 | AC | 44 ms
49,428 KB |
testcase_07 | AC | 43 ms
49,300 KB |
testcase_08 | AC | 44 ms
49,648 KB |
testcase_09 | AC | 44 ms
49,372 KB |
testcase_10 | AC | 44 ms
49,204 KB |
testcase_11 | AC | 44 ms
49,356 KB |
testcase_12 | AC | 44 ms
49,176 KB |
testcase_13 | AC | 46 ms
49,364 KB |
testcase_14 | AC | 45 ms
49,388 KB |
testcase_15 | AC | 45 ms
49,300 KB |
testcase_16 | AC | 43 ms
49,200 KB |
testcase_17 | AC | 44 ms
47,552 KB |
testcase_18 | AC | 44 ms
49,236 KB |
testcase_19 | AC | 50 ms
49,340 KB |
testcase_20 | AC | 50 ms
49,352 KB |
testcase_21 | AC | 49 ms
49,452 KB |
testcase_22 | AC | 50 ms
49,348 KB |
testcase_23 | AC | 51 ms
49,368 KB |
testcase_24 | AC | 50 ms
49,356 KB |
testcase_25 | AC | 51 ms
49,336 KB |
testcase_26 | AC | 266 ms
68,256 KB |
testcase_27 | AC | 288 ms
68,268 KB |
testcase_28 | AC | 178 ms
65,900 KB |
testcase_29 | AC | 151 ms
62,280 KB |
testcase_30 | AC | 153 ms
62,388 KB |
testcase_31 | AC | 154 ms
61,544 KB |
testcase_32 | AC | 138 ms
62,044 KB |
testcase_33 | AC | 200 ms
63,248 KB |
testcase_34 | AC | 198 ms
63,044 KB |
testcase_35 | AC | 178 ms
58,816 KB |
testcase_36 | AC | 140 ms
57,416 KB |
testcase_37 | AC | 205 ms
64,216 KB |
testcase_38 | AC | 191 ms
63,144 KB |
testcase_39 | AC | 154 ms
57,308 KB |
testcase_40 | AC | 190 ms
62,716 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) {}} }