結果
問題 | No.1880 Many Ways |
ユーザー | 37zigen |
提出日時 | 2021-12-30 10:30:17 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 170 ms / 2,000 ms |
コード長 | 5,329 bytes |
コンパイル時間 | 2,826 ms |
コンパイル使用メモリ | 91,576 KB |
実行使用メモリ | 42,680 KB |
最終ジャッジ日時 | 2024-10-13 05:09:30 |
合計ジャッジ時間 | 17,196 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 116 ms
41,112 KB |
testcase_01 | AC | 124 ms
40,976 KB |
testcase_02 | AC | 157 ms
42,332 KB |
testcase_03 | AC | 124 ms
41,884 KB |
testcase_04 | AC | 147 ms
42,388 KB |
testcase_05 | AC | 130 ms
41,656 KB |
testcase_06 | AC | 146 ms
42,048 KB |
testcase_07 | AC | 145 ms
42,160 KB |
testcase_08 | AC | 141 ms
42,096 KB |
testcase_09 | AC | 151 ms
42,644 KB |
testcase_10 | AC | 170 ms
42,272 KB |
testcase_11 | AC | 153 ms
42,648 KB |
testcase_12 | AC | 151 ms
42,680 KB |
testcase_13 | AC | 149 ms
42,520 KB |
ソースコード
import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.io.InputStream; import java.util.ArrayDeque; import java.util.Arrays; import java.util.NoSuchElementException; import java.util.Random; import java.util.Scanner; public class Main { public static void main(String[] args) throws IOException { // new Main().judge(args); Scanner sc=new Scanner(System.in); build(sc.nextLong()); // new Main().random(); sc.close(); } void random() { long A=0; Random rnd=new Random(); for (int i=0;i<40;++i) { if (rnd.nextBoolean()) A|=1L<<i; } System.out.println(A); } void judge(String[] args) throws IOException { File file_in = new File(args[0]); BufferedReader br_in = new BufferedReader(new FileReader(file_in)); long A=Long.parseLong(br_in.readLine()); Scanner sc = new Scanner(System.in); int n=sc.nextInt(); int m=sc.nextInt(); int[][] a=new int[n][n]; for (int i=0;i<m;++i) { int u=sc.nextInt()-1; int v=sc.nextInt()-1; assert(u != v); assert(a[u][v]==0 && a[v][u]==0); a[u][v]=a[v][u]=1; } assert(calc(n, a) == A); br_in.close(); } static void build(long A) { if (A == 0) { System.out.println("2 0"); return; } else if (A == 1) { System.out.println("2 1"); System.out.println("1 2"); return; } int n=1; while ((1L<<n)<=A) ++n; int N=2+3*(n-1); int[][] a=new int[N][N]; for (int i=1;i<=3;++i) { a[0][i]=a[i][0]=1; } for (int i=1;i<3;++i) a[3*(n-2)+i][N-1]=a[N-1][3*(n-2)+i]=1; for (int i=0;i<n-2;++i) { int p=3*i+1; int q=3*i+2; int r=3*(i+1)+1; int s=3*(i+1)+2; for (int u : new int[] {p, q}) { for (int v : new int[] {r, s}) { a[u][v]=a[v][u]=1; } } } for (int i=0;i<=n-2;++i) { a[3*i][3*(i+1)]=a[3*(i+1)][3*i]=1; } for (int i=0;i<=n-2;++i) { if ((A>>i)%2==1) { int u=3*(n-1-i)+1; int v=3*(n-1-i)+2; int p=3*(n-1-i-1)+3; u=Math.min(u, N-1); v=Math.min(v, N-1); a[u][p]=a[p][u]=1; a[v][p]=a[p][v]=1; } } int M=0; for (int i=0;i<N;++i) for (int j=i+1;j<N;++j) { if (a[i][j]==1) ++M; } System.out.println(N + " " + M); for (int i=0;i<N;++i) for (int j=i+1;j<N;++j) { if (a[i][j]==1) System.out.println((i+1)+" "+(j+1)); } } static long calc(int n, int[][] a) { int[][] d=new int[n][n]; for (int i=0;i<n;++i) for (int j=0;j<n;++j) if (i!=j) d[i][j]=n; for (int i=0;i<n;++i) { for (int j=0;j<n;++j) { if (a[i][j] == 1) d[i][j]=1; } } for (int k=0;k<n;++k) { for (int i=0;i<n;++i) { for (int j=0;j<n;++j) { d[i][j]=Math.min(d[i][j], d[i][k]+d[k][j]); } } } boolean[] vis=new boolean[n]; ArrayDeque<Integer> que=new ArrayDeque<>(); int src = 0; que.add(src); long[] cnt=new long[n]; cnt[src]=1; vis[src]=true; while (!que.isEmpty()) { int v = que.pollFirst(); for (int u=0;u<n;++u) { if (a[v][u] == 1 && d[src][u] == d[src][v] + 1) { if (!vis[u]) que.addLast(u); vis[u]=true; cnt[u]+=cnt[v]; } } } return cnt[n-1]; } static void tr(Object...o) { System.out.println(Arrays.deepToString(o)); } } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; 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;} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(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 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 double nextDouble() { return Double.parseDouble(next());} }