結果

問題 No.365 ジェンガソート
ユーザー uwiuwi
提出日時 2016-04-29 22:48:46
言語 Java21
(openjdk 21)
結果
AC  
実行時間 95 ms / 2,000 ms
コード長 3,249 bytes
コンパイル時間 3,704 ms
コンパイル使用メモリ 89,348 KB
実行使用メモリ 38,860 KB
最終ジャッジ日時 2024-04-20 06:36:45
合計ジャッジ時間 7,731 ms
ジャッジサーバーID
(参考情報)
judge4 / judge2
このコードへのチャレンジ
(要ログイン)

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 52 ms
36,956 KB
testcase_01 AC 56 ms
36,444 KB
testcase_02 AC 55 ms
37,040 KB
testcase_03 AC 53 ms
36,604 KB
testcase_04 AC 46 ms
36,968 KB
testcase_05 AC 52 ms
36,956 KB
testcase_06 AC 47 ms
36,604 KB
testcase_07 AC 56 ms
36,772 KB
testcase_08 AC 48 ms
36,912 KB
testcase_09 AC 47 ms
37,008 KB
testcase_10 AC 47 ms
36,880 KB
testcase_11 AC 47 ms
36,728 KB
testcase_12 AC 47 ms
36,732 KB
testcase_13 AC 48 ms
36,488 KB
testcase_14 AC 47 ms
36,600 KB
testcase_15 AC 49 ms
36,600 KB
testcase_16 AC 84 ms
38,348 KB
testcase_17 AC 77 ms
38,812 KB
testcase_18 AC 53 ms
36,580 KB
testcase_19 AC 85 ms
38,488 KB
testcase_20 AC 68 ms
36,884 KB
testcase_21 AC 67 ms
36,988 KB
testcase_22 AC 80 ms
38,376 KB
testcase_23 AC 85 ms
37,636 KB
testcase_24 AC 91 ms
38,392 KB
testcase_25 AC 57 ms
37,364 KB
testcase_26 AC 78 ms
38,296 KB
testcase_27 AC 75 ms
38,844 KB
testcase_28 AC 68 ms
38,332 KB
testcase_29 AC 83 ms
38,404 KB
testcase_30 AC 82 ms
37,888 KB
testcase_31 AC 61 ms
37,168 KB
testcase_32 AC 59 ms
37,192 KB
testcase_33 AC 89 ms
38,632 KB
testcase_34 AC 62 ms
36,964 KB
testcase_35 AC 84 ms
38,492 KB
testcase_36 AC 87 ms
38,860 KB
testcase_37 AC 95 ms
38,520 KB
testcase_38 AC 80 ms
38,576 KB
testcase_39 AC 75 ms
38,532 KB
testcase_40 AC 82 ms
38,652 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 #

package contest;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;

public class Q1081 {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int n = ni();
		int[] a = na(n);
		int k = n;
		for(int i = n-1;i >= 0;i--){
			if(a[i] == k){
				k--;
			}
		}
		out.println(k);
	}
	
	public static int lis(int[] in)
	{
		int n = in.length;
		int ret = 0;
		int[] h = new int[n + 1];
		Arrays.fill(h, Integer.MIN_VALUE / 2);
		for(int i = 0;i < n;i++){
			int ind = Arrays.binarySearch(h, 0, ret + 1, in[i]);
			if(ind < 0){
				ind = -ind-2;
				h[ind+1] = in[i];
				if(ind >= ret)ret++;
			}
		}
		return ret;
	}
	
	void run() throws Exception
	{
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		long s = System.currentTimeMillis();
		solve();
		out.flush();
		if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
	}
	
	public static void main(String[] args) throws Exception { new Q1081().run(); }
	
	private byte[] inbuf = new byte[1024];
	private int lenbuf = 0, ptrbuf = 0;
	
	private int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}
	
	private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
	private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
	
	private double nd() { return Double.parseDouble(ns()); }
	private char nc() { return (char)skip(); }
	
	private String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	
	private char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}
	
	private char[][] nm(int n, int m)
	{
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}
	
	private int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private int ni()
	{
		int num = 0, b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
}
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