結果
| 問題 |
No.462 6日知らずのコンピュータ
|
| コンテスト | |
| ユーザー |
14番
|
| 提出日時 | 2016-12-13 04:26:46 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 4,385 bytes |
| コンパイル時間 | 2,336 ms |
| コンパイル使用メモリ | 109,696 KB |
| 実行使用メモリ | 169,648 KB |
| 最終ジャッジ日時 | 2024-11-30 00:35:04 |
| 合計ジャッジ時間 | 25,657 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 79 TLE * 5 |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;
public class Program
{
public void Proc() {
Reader.IsDebug = false;
int[] inpt = Reader.ReadLine().Split(' ').Select(a=>int.Parse(a)).ToArray();
this.Length = inpt[0];
if(inpt[1] == 0) {
long ans = 1;
for(int i=2; i<=this.Length; i++) {
ans*=i;
ans = ans % MOD;
}
Console.WriteLine(ans);
} else {
this.NumList = Reader.ReadLine().Split(' ').Select(a=>long.Parse(a)).OrderBy(a=>a).ToArray();
int maxKeta = Convert.ToString(this.NumList.Max(), 2).Length;
char[] arr = new char[maxKeta].Select(a=>' ').ToArray();
foreach(long item in this.NumList.OrderByDescending(a=>a)) {
string tmp = Convert.ToString(item, 2);
for(int i=0; i<tmp.Length; i++) {
if(tmp[tmp.Length-i-1] == '1' && arr[arr.Length-1-i] == '0') {
Console.WriteLine(0);
return;
}
if(tmp[tmp.Length-i-1] == '0') {
arr[arr.Length-1-i] = '0';
}
}
}
long ans = this.GetAns(0,0);
Console.WriteLine(ans);
}
}
private Dictionary<long, long> dic = new Dictionary<long, long>();
private long GetAns(long selected, long flags) {
if(dic.ContainsKey(selected)) {
return dic[selected];
}
long flags2 = flags;
for(int i=0; i<this.NumList.Length; i++) {
long key = (long)1<<i;
if((flags2&key) == key) {
continue;
}
if(selected == this.NumList[i]) {
flags2+=key;
continue;
}
if(selected > this.NumList[i]) {
dic[selected] = 0;
return 0;
}
string selStr = Convert.ToString(selected, 2);
string numStr = Convert.ToString(this.NumList[i], 2);
selStr = selStr.PadLeft(numStr.Length, '0');
numStr = numStr.PadLeft(selStr.Length);
bool flag = true;
for(int j=numStr.Length -1; j>=0; j--) {
if(numStr[j] == '0' && selStr[j] != '0') {
flag = false;
break;
}
}
if(!flag) {
dic[selected] = 0;
return 0;
}
}
if(selected == ((long)1<<this.Length)-1) {
if(flags2 == ((long)1<<this.NumList.Length)-1) {
dic[selected] = 1;
} else {
dic[selected] = 0;
}
return dic[selected];
}
if(flags2 == ((long)1<<this.NumList.Length)-1) {
int cnt = 0;
for(int i=0; i<this.Length; i++) {
long key = (long)1<<i;
if((selected&key)==0) {
cnt++;
}
}
long ret = 1;
for(int i=1; i<=cnt; i++) {
ret*=i;
ret = ret % MOD;
}
dic[selected] = ret;
return ret;
}
long ans = 0;
for(int i=0; i<this.Length; i++) {
long key = (long)1<<i;
if((selected&key)>0) {
continue;
}
ans+=this.GetAns(selected+key, flags2);
ans = ans % MOD;
}
this.dic[selected] = ans;
return ans;
}
private const long MOD = 1000000000 + 7;
private int Length = 0;
private long[] NumList;
public class Reader {
public static bool IsDebug = true;
private static System.IO.StringReader SReader;
private static string InitText = @"
10 3
5 1
";
public static string ReadLine() {
if(IsDebug) {
if(SReader == null) {
SReader = new System.IO.StringReader(InitText.Trim());
}
return SReader.ReadLine();
} else {
return Console.ReadLine();
}
}
}
public static void Main(string[] args)
{
Program prg = new Program();
prg.Proc();
}
}
14番