結果
| 問題 |
No.233 めぐるはめぐる (3)
|
| コンテスト | |
| ユーザー |
uafr_cs
|
| 提出日時 | 2015-08-31 00:31:29 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 944 ms / 1,000 ms |
| コード長 | 2,822 bytes |
| コンパイル時間 | 2,037 ms |
| コンパイル使用メモリ | 79,808 KB |
| 実行使用メモリ | 76,536 KB |
| 最終ジャッジ日時 | 2024-07-18 15:49:23 |
| 合計ジャッジ時間 | 16,618 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 11 |
ソースコード
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeSet;
public class Main {
public static boolean is_vowel(char c){
return c == 'a' || c == 'i' || c == 'u' || c == 'e' || c == 'o';
}
public static void dfs(final int deep, char[] input, StringBuilder builder, boolean[] used, HashSet<String> result){
final char prev = builder.length() == 0 ? 'i' : builder.charAt(builder.length() - 1);
if(deep >= input.length){
//System.out.println(builder);
result.add(builder.toString());
return;
}
int can_use_vovel = 0, can_use_not_vovel = 0;
for(int i = 0; i < input.length; i++){
if(!used[i]){
if(is_vowel(input[i])){
can_use_vovel++;
}else{
can_use_not_vovel++;
}
}
}
if(can_use_vovel < can_use_not_vovel){ return; }
for(int next = 0; next < input.length; next++){
if(used[next]){ continue; }
if(!is_vowel(prev) && !is_vowel(input[next])){ continue; }
if(deep == input.length - 1 && !is_vowel(input[next])){ continue; }
used[next] = true;
builder.append(input[next]);
dfs(deep + 1, input, builder, used, result);
builder.deleteCharAt(builder.length() - 1);
used[next] = false;
}
}
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
final String meguru = "inabameguru";
final int N = sc.nextInt();
HashSet<String> result = new HashSet<String>();
dfs(0, meguru.toCharArray(), new StringBuilder(), new boolean[meguru.length()], result);
for(int i = 0; i < N; i++){
result.remove(sc.next());
}
if(result.isEmpty()){
System.out.println("NO");
}else{
for(String s : result){
System.out.println(s);
break;
}
}
}
public static class Scanner implements Closeable {
private BufferedReader br;
private StringTokenizer tok;
public Scanner(InputStream is) throws IOException {
br = new BufferedReader(new InputStreamReader(is));
}
private void getLine() throws IOException {
while (!hasNext()) {
tok = new StringTokenizer(br.readLine());
}
}
private boolean hasNext() {
return tok != null && tok.hasMoreTokens();
}
public String next() throws IOException {
getLine();
return tok.nextToken();
}
public int nextInt() throws IOException {
return Integer.parseInt(next());
}
public long nextLong() throws IOException {
return Long.parseLong(next());
}
public void close() throws IOException {
br.close();
}
}
}
uafr_cs