結果
問題 | No.791 うし数列 |
ユーザー | YukimotoPG |
提出日時 | 2019-03-11 12:44:08 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 56 ms / 2,000 ms |
コード長 | 2,458 bytes |
コンパイル時間 | 2,205 ms |
コンパイル使用メモリ | 78,196 KB |
実行使用メモリ | 50,228 KB |
最終ジャッジ日時 | 2024-06-23 15:29:43 |
合計ジャッジ時間 | 3,820 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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
49,988 KB |
testcase_01 | AC | 53 ms
50,120 KB |
testcase_02 | AC | 54 ms
49,888 KB |
testcase_03 | AC | 55 ms
50,200 KB |
testcase_04 | AC | 56 ms
50,224 KB |
testcase_05 | AC | 54 ms
50,112 KB |
testcase_06 | AC | 54 ms
50,092 KB |
testcase_07 | AC | 55 ms
50,104 KB |
testcase_08 | AC | 53 ms
49,880 KB |
testcase_09 | AC | 53 ms
50,228 KB |
testcase_10 | AC | 55 ms
50,040 KB |
testcase_11 | AC | 53 ms
50,088 KB |
testcase_12 | AC | 53 ms
50,104 KB |
testcase_13 | AC | 55 ms
50,192 KB |
testcase_14 | AC | 55 ms
50,100 KB |
testcase_15 | AC | 53 ms
49,880 KB |
testcase_16 | AC | 55 ms
49,924 KB |
ソースコード
import java.util.*; import java.io.*; public class Main { void solve (FastScanner in, PrintWriter out) { String s = in.next(); if (s.charAt(0) != '1') { out.println(-1); return; } for (int i=1; i<s.length(); i++) { if (s.charAt(i) != '3') { out.println(-1); return; } } if (s.length() <= 1) { out.println(-1); return; } out.println(s.length()-1); } public static void main(String[] args) { FastScanner in = new FastScanner(System.in); PrintWriter out = new PrintWriter(System.out); Main main = new Main(); main.solve(in, out); in.close(); out.close(); } static class FastScanner { private InputStream in; private byte[] buffer = new byte[1024]; private int length = 0, p = 0; public FastScanner (InputStream stream) { in = stream; } public boolean hasNextByte () { if (p < length) return true; else { p = 0; try {length = in.read(buffer);} catch (Exception e) {e.printStackTrace();} if (length <= 0) return false; } return true; } public int readByte () { if (hasNextByte() == true) return buffer[p++]; return -1; } public boolean isPrintable (int n) {return 33<=n&&n<=126;} public void skip () { while (hasNextByte() && !isPrintable(buffer[p])) p++; } public boolean hasNext () {skip(); return hasNextByte();} public String next () { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int t = readByte(); while (isPrintable(t)) { sb.appendCodePoint(t); t = readByte(); } return sb.toString(); } public int nextInt () {return Math.toIntExact(nextLong());} public int[] nextIntArray (int n) { int[] ar = new int[n]; for (int i=0; i<n; i++) ar[i] = nextInt(); return ar; } public long nextLong () { if (!hasNext()) throw new NoSuchElementException(); boolean minus = false; int temp = readByte(); if (temp == '-') { minus = true; temp = readByte(); } if (temp<'0' || '9'<temp) throw new NumberFormatException(); long n = 0; while (isPrintable(temp)) { if ('0'<=temp && temp<='9') { n *= 10; n += temp - '0'; } else throw new NumberFormatException(); temp = readByte(); } return minus? -n : n; } public double nextDouble () { return Double.parseDouble(next()); } public void close () { try {in.close();} catch(Exception e){} } } }