結果
問題 | No.563 超高速一人かるた large |
ユーザー | uwi |
提出日時 | 2017-08-25 23:28:47 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 495 ms / 3,000 ms |
コード長 | 5,769 bytes |
コンパイル時間 | 4,121 ms |
コンパイル使用メモリ | 84,400 KB |
実行使用メモリ | 94,564 KB |
最終ジャッジ日時 | 2024-10-15 16:12:43 |
合計ジャッジ時間 | 10,616 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 123 ms
77,096 KB |
testcase_01 | AC | 121 ms
77,240 KB |
testcase_02 | AC | 122 ms
76,620 KB |
testcase_03 | AC | 131 ms
76,968 KB |
testcase_04 | AC | 141 ms
76,860 KB |
testcase_05 | AC | 160 ms
77,424 KB |
testcase_06 | AC | 271 ms
81,392 KB |
testcase_07 | AC | 292 ms
79,848 KB |
testcase_08 | AC | 390 ms
80,396 KB |
testcase_09 | AC | 495 ms
81,576 KB |
testcase_10 | AC | 408 ms
94,380 KB |
testcase_11 | AC | 388 ms
93,924 KB |
testcase_12 | AC | 414 ms
94,168 KB |
testcase_13 | AC | 415 ms
83,524 KB |
testcase_14 | AC | 400 ms
94,192 KB |
testcase_15 | AC | 419 ms
94,564 KB |
testcase_16 | AC | 414 ms
83,220 KB |
testcase_17 | AC | 256 ms
78,764 KB |
testcase_18 | AC | 434 ms
79,096 KB |
testcase_19 | AC | 158 ms
77,396 KB |
testcase_20 | AC | 322 ms
80,364 KB |
ソースコード
package contest170825; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.Comparator; import java.util.InputMismatchException; // 4*10^8はやばそうだった public class F2 { InputStream is; PrintWriter out; String INPUT = ""; // String INPUT = "12 a b c d e f g h i j k l"; void solve() { int n = ni(); char[][] ss = new char[n][]; for(int i = 0;i < n;i++){ ss[i] = ns().toCharArray(); } Arrays.sort(ss, new Comparator<char[]>() { public int compare(char[] a, char[] b) { for(int i = 0;i < a.length && i < b.length;i++){ if(a[i] != b[i])return a[i] - b[i]; } return a.length - b.length; } }); int[] lcps = new int[n-1]; for(int i = 0;i < n-1;i++){ lcps[i] = lcp(ss[i], ss[i+1]); } long[] ls = new long[n]; for(int i = 0;i < n;i++){ int[] llcps = new int[n]; int p = 0; int all = 999999999; for(int j = i-1;j >= 0;j--){ all = Math.min(all, lcps[j]); llcps[p++] = all; } all = 999999999; for(int j = i;j < n-1;j++){ all = Math.min(all, lcps[j]); llcps[p++] = all; } llcps[p++] = 1; Arrays.sort(llcps); for(int j = 0;j < n;j++)ls[j] += llcps[j]; } int mod = 1000000007; for(int j = 0;j < n;j++){ ls[j] = ls[j] % mod; } long[][] C = new long[2200 + 1][2200 + 1]; for (int i = 0; i <= 2200; i++) { C[i][0] = 1; for (int j = 1; j <= i; j++) { C[i][j] = C[i - 1][j - 1] + C[i - 1][j]; if (C[i][j] >= mod) C[i][j] -= mod; } } long[] ans = new long[n]; long big = 8L*mod*mod; for(int i = n;i >= 1;i--){ // for(int j = 0;j < n && n-i-j >= 0 && n-j-2 >= 0;j++){ for(int j = 0;n-i-j >= 0 && n-j-2 >= 0;j++){ // tr(i, j, C(n-j-2, n-i-j, mod, fif)); // ans[n-i] += C(n-j-2, n-i-j, mod, fif) * ls[n-1-j]; ans[n-i] += C[n-j-2][n-i-j] * ls[n-1-j]; if(ans[n-i] >= big)ans[n-i] -= big; } if(i == 1){ ans[n-i] += ls[0]; } ans[n-i] %= mod; } for(int i = 0;i < n;i++){ ans[i] = ans[i] * invl((long)C[n-1][i] * n % mod, mod) % mod; } for(int i = 0;i < n-1;i++){ ans[i+1] += ans[i]; ans[i+1] %= mod; } long q = 1; for(int i = 0;i < n;i++){ q = q * (n-i) % mod; ans[i] = ans[i] * q % mod; } for(long an : ans){ out.println(an); } } public static long invl(long a, long mod) { long b = mod; long p = 1, q = 0; while (b > 0) { long c = a / b; long d; d = a; a = b; b = d % b; d = p; p = q; q = d - c * q; } return p < 0 ? p + mod : p; } int lcp(char[] a, char[] b) { for(int i = 0;i < a.length && i < b.length;i++){ if(a[i] != b[i])return i+1; } return Math.min(a.length, b.length) + 1; } void run() throws Exception { // int n = 2000, m = 99999; // Random gen = new Random(); // StringBuilder sb = new StringBuilder(); // sb.append(n + " "); // for (int i = 0; i < n; i++) { // for(int j = 0;j < 100;j++){ // sb.append("a"); // } // sb.append("\n"); // } // INPUT = sb.toString(); 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 F2().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)); } }