結果
問題 | No.52 よくある文字列の問題 |
ユーザー | Tsukasa_Type |
提出日時 | 2018-03-10 21:51:55 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,355 bytes |
コンパイル時間 | 2,316 ms |
コンパイル使用メモリ | 78,584 KB |
実行使用メモリ | 51,032 KB |
最終ジャッジ日時 | 2024-04-22 18:27:59 |
合計ジャッジ時間 | 3,625 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 53 ms
36,784 KB |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | AC | 82 ms
38,092 KB |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | AC | 54 ms
36,932 KB |
testcase_10 | AC | 56 ms
36,692 KB |
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) {} } }