結果

問題 No.791 うし数列
ユーザー threepipes_sthreepipes_s
提出日時 2019-02-22 21:22:38
言語 Java
(openjdk 23)
結果
AC  
実行時間 55 ms / 2,000 ms
コード長 3,211 bytes
コンパイル時間 2,126 ms
コンパイル使用メモリ 79,804 KB
実行使用メモリ 52,696 KB
最終ジャッジ日時 2024-11-25 05:05:33
合計ジャッジ時間 3,652 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 15
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.Closeable;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.lang.reflect.Array;
import java.util.*;
public class Main implements Runnable {
static ContestScanner in;
static Writer out;
public static void main(String[] args) {
new Thread(null, new Main(), "", 16 * 1024 * 1024).start();
}
public void run() {
Main main = new Main();
try {
in = new ContestScanner();
out = new Writer();
main.solve();
out.close();
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
void solve() throws IOException {
char[] s = in.nextToken().toCharArray();
if (s[0] != '1' || s.length < 2) {
System.out.println(-1);
return;
}
for (int i = 1; i < s.length; i++) {
if (s[i] != '3') {
System.out.println(-1);
return;
}
}
System.out.println(s.length - 1);
}
}
@SuppressWarnings("serial")
class MultiSet<T> extends HashMap<T, Integer>{
@Override public Integer get(Object key){return containsKey(key)?super.get(key):0;}
public void add(T key,int v){put(key,get(key)+v);}
public void add(T key){put(key,get(key)+1);}
public void sub(T key){final int v=get(key);if(v==1)remove(key);else put(key,v-1);}
public MultiSet<T> merge(MultiSet<T> set)
{MultiSet<T>s,l;if(this.size()<set.size()){s=this;l=set;}else{s=set;l=this;}
for(Entry<T,Integer>e:s.entrySet())l.add(e.getKey(),e.getValue());return l;}
}
class Writer extends PrintWriter{
public Writer(String filename)throws IOException
{super(new BufferedWriter(new FileWriter(filename)));}
public Writer()throws IOException{super(System.out);}
}
class ContestScanner implements Closeable{
private BufferedReader in;private int c=-2;
public ContestScanner()throws IOException
{in=new BufferedReader(new InputStreamReader(System.in));}
public ContestScanner(String filename)throws IOException
{in=new BufferedReader(new InputStreamReader(new FileInputStream(filename)));}
public String nextToken()throws IOException {
StringBuilder sb=new StringBuilder();
while((c=in.read())!=-1&&Character.isWhitespace(c));
while(c!=-1&&!Character.isWhitespace(c)){sb.append((char)c);c=in.read();}
return sb.toString();
}
public String readLine()throws IOException{
StringBuilder sb=new StringBuilder();if(c==-2)c=in.read();
while(c!=-1&&c!='\n'&&c!='\r'){sb.append((char)c);c=in.read();}
return sb.toString();
}
public long nextLong()throws IOException,NumberFormatException
{return Long.parseLong(nextToken());}
public int nextInt()throws NumberFormatException,IOException
{return(int)nextLong();}
public double nextDouble()throws NumberFormatException,IOException
{return Double.parseDouble(nextToken());}
public void close() throws IOException {in.close();}
}
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