結果

問題 No.365 ジェンガソート
ユーザー threepipes_sthreepipes_s
提出日時 2016-04-29 22:24:47
言語 Java21
(openjdk 21)
結果
AC  
実行時間 306 ms / 2,000 ms
コード長 4,054 bytes
コンパイル時間 7,850 ms
コンパイル使用メモリ 83,256 KB
実行使用メモリ 58,156 KB
最終ジャッジ日時 2024-10-12 01:34:48
合計ジャッジ時間 11,104 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge3
このコードへのチャレンジ
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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
50,536 KB
testcase_01 AC 55 ms
50,096 KB
testcase_02 AC 52 ms
50,400 KB
testcase_03 AC 53 ms
50,376 KB
testcase_04 AC 52 ms
49,996 KB
testcase_05 AC 54 ms
50,540 KB
testcase_06 AC 53 ms
50,488 KB
testcase_07 AC 52 ms
50,352 KB
testcase_08 AC 53 ms
50,112 KB
testcase_09 AC 52 ms
50,428 KB
testcase_10 AC 53 ms
50,364 KB
testcase_11 AC 53 ms
50,424 KB
testcase_12 AC 52 ms
50,372 KB
testcase_13 AC 52 ms
50,284 KB
testcase_14 AC 51 ms
50,240 KB
testcase_15 AC 55 ms
50,136 KB
testcase_16 AC 283 ms
56,856 KB
testcase_17 AC 285 ms
57,976 KB
testcase_18 AC 152 ms
55,948 KB
testcase_19 AC 303 ms
58,156 KB
testcase_20 AC 220 ms
57,152 KB
testcase_21 AC 196 ms
57,352 KB
testcase_22 AC 285 ms
57,460 KB
testcase_23 AC 237 ms
57,076 KB
testcase_24 AC 272 ms
57,248 KB
testcase_25 AC 204 ms
57,008 KB
testcase_26 AC 248 ms
57,260 KB
testcase_27 AC 298 ms
57,552 KB
testcase_28 AC 275 ms
57,192 KB
testcase_29 AC 298 ms
57,768 KB
testcase_30 AC 273 ms
57,280 KB
testcase_31 AC 202 ms
56,980 KB
testcase_32 AC 204 ms
57,136 KB
testcase_33 AC 306 ms
57,652 KB
testcase_34 AC 193 ms
57,624 KB
testcase_35 AC 265 ms
57,400 KB
testcase_36 AC 297 ms
57,800 KB
testcase_37 AC 306 ms
57,740 KB
testcase_38 AC 295 ms
57,572 KB
testcase_39 AC 287 ms
57,912 KB
testcase_40 AC 299 ms
57,392 KB
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 # 

import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.BitSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
 
public class Main {
	public static void main(String[] args) throws NumberFormatException,
	IOException {Main solve = new Main();solve.solve();}
	void dump(int[]a){for(int i=0;i<a.length;i++)System.out.print(a[i]+" ");System.out.println();}
	void dump(int[]a,int n){for(int i=0;i<a.length;i++)System.out.printf("%"+n+"d",a[i]);System.out.println();}
	void dump(long[]a){for(int i=0;i<a.length;i++)System.out.print(a[i]+" ");System.out.println();}
	void dump(char[]a){for(int i=0;i<a.length;i++)System.out.print(a[i]);System.out.println();}
	long pow(long a,int n){long r=1;while(n>0){if((n&1)==1)r*=a;a*=a;n>>=1;}return r;}
	String itob(int a,int l){return String.format("%"+l+"s",Integer.toBinaryString(a)).replace(' ','0');}
	void sort(int[]a){m_sort(a,0,a.length,new int[a.length]);}
	void m_sort(int[]a, int s, int sz, int[]b){
		if(sz<7){for(int i=s;i<s+sz;i++)for(int j=i;j>s&&a[j-1]>a[j];j--)swap(a, j, j-1);return;}
		m_sort(a,s,sz/2,b);m_sort(a,s+sz/2,sz-sz/2,b);int idx=s;int l=s,r=s+sz/2;final int le=s+sz/2,re=s+sz;
		while(l<le&&r<re){if(a[l]>a[r])b[idx++]=a[r++];else b[idx++]=a[l++];}
		while(r<re)b[idx++]=a[r++];while(l<le)b[idx++]=a[l++];for(int i=s;i<s+sz;i++)a[i]=b[i];
	} /* qsort(3.5s)<<msort(9.5s)<<<shuffle+qsort(17s)<Arrays.sort(Integer)(20s) */
	void swap(int[] a,int i,int j){final int t=a[i];a[i]=a[j];a[j]=t;}
	int binarySearchSmallerMax(int[]a,int v) // get maximum index which a[idx]<=v
	{int l=0,r=a.length-1,s=0;while(l<=r){int m=(l+r)/2;if(a[m]>v)r=m-1;else{l=m+1;s=m;}}return a[s]>v?-1:s;}
	void solve() throws NumberFormatException, IOException{
		final ContestScanner in = new ContestScanner();
		Writer out = new Writer();
		int n = in.nextInt();
		int count = 0;
		int[] a = new int[n];
		for(int i=0; i<n; i++){
			a[i] = in.nextInt();
		}
		for(int i=n-1; i>=0; i--){
			if(a[i]<i+1+count) count++;
		}
		System.out.println(count);
	}
}
 
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);}
}
class Timer{
	long time;
	public void set(){time=System.currentTimeMillis();}
	public long stop(){return time=System.currentTimeMillis()-time;}
	public void print()
	{System.out.println("Time: "+(System.currentTimeMillis()-time)+"ms");}
	@Override public String toString(){return"Time: "+time+"ms";}
}
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 {
	private InputStreamReader in;private int c=-2;
	public ContestScanner()throws IOException 
	{in=new InputStreamReader(System.in);}
	public ContestScanner(String filename)throws IOException
	{in=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());}
}
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