結果
| 問題 |
No.52 よくある文字列の問題
|
| コンテスト | |
| ユーザー |
Tsukasa_Type
|
| 提出日時 | 2018-03-10 21:51:55 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,355 bytes |
| コンパイル時間 | 2,466 ms |
| コンパイル使用メモリ | 80,328 KB |
| 実行使用メモリ | 52,152 KB |
| 最終ジャッジ日時 | 2024-10-14 17:57:00 |
| 合計ジャッジ時間 | 3,232 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 4 WA * 7 |
ソースコード
import java.io.*;
import java.util.*;
import static java.lang.System.*;
public class Main {
static FastScanner sc = new FastScanner(System.in);
static Set<String> set = new HashSet<>();
public static void main(String[] args) {
String s = sc.next();
StringBuilder sb = new StringBuilder();
rec(s,sb);
out.println(set.size());
}
static void rec (String s, StringBuilder sb) {
if (s.length() == 1) {
set.add(sb.append(s).toString());
}
else {
rec(s.substring(0,s.length()-1), sb.append(s.charAt(s.length()-1)));
rec(s.substring(1,s.length()), sb.append(s.charAt(0)));
}
}
}
class FastScanner implements Closeable {
private final InputStream in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
public FastScanner(InputStream in) {this.in = in;}
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());}
public void close() {
try {in.close();}
catch (IOException e) {}
}
}
Tsukasa_Type