結果

問題 No.761 平均値ゲーム
ユーザー uwiuwi
提出日時 2018-12-10 00:31:27
言語 Java21
(openjdk 21)
結果
AC  
実行時間 95 ms / 2,000 ms
コード長 3,570 bytes
コンパイル時間 3,745 ms
コンパイル使用メモリ 80,232 KB
実行使用メモリ 52,468 KB
最終ジャッジ日時 2023-10-14 22:00:25
合計ジャッジ時間 16,622 ms
ジャッジサーバーID
(参考情報)
judge12 / judge15
このコードへのチャレンジ(β)

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 45 ms
49,188 KB
testcase_01 AC 43 ms
49,348 KB
testcase_02 AC 43 ms
49,288 KB
testcase_03 AC 43 ms
49,408 KB
testcase_04 AC 43 ms
49,544 KB
testcase_05 AC 43 ms
49,312 KB
testcase_06 AC 43 ms
49,732 KB
testcase_07 AC 43 ms
49,360 KB
testcase_08 AC 44 ms
49,480 KB
testcase_09 AC 44 ms
49,332 KB
testcase_10 AC 43 ms
49,328 KB
testcase_11 AC 43 ms
49,304 KB
testcase_12 AC 43 ms
49,500 KB
testcase_13 AC 43 ms
49,348 KB
testcase_14 AC 44 ms
49,376 KB
testcase_15 AC 43 ms
47,280 KB
testcase_16 AC 43 ms
49,304 KB
testcase_17 AC 43 ms
49,272 KB
testcase_18 AC 43 ms
49,668 KB
testcase_19 AC 44 ms
49,292 KB
testcase_20 AC 43 ms
49,324 KB
testcase_21 AC 45 ms
49,308 KB
testcase_22 AC 44 ms
49,304 KB
testcase_23 AC 44 ms
49,700 KB
testcase_24 AC 43 ms
49,304 KB
testcase_25 AC 44 ms
49,308 KB
testcase_26 AC 44 ms
49,276 KB
testcase_27 AC 43 ms
49,696 KB
testcase_28 AC 43 ms
49,276 KB
testcase_29 AC 42 ms
49,292 KB
testcase_30 AC 43 ms
49,332 KB
testcase_31 AC 44 ms
49,320 KB
testcase_32 AC 43 ms
49,404 KB
testcase_33 AC 87 ms
51,916 KB
testcase_34 AC 91 ms
51,864 KB
testcase_35 AC 55 ms
50,588 KB
testcase_36 AC 81 ms
51,364 KB
testcase_37 AC 85 ms
51,848 KB
testcase_38 AC 86 ms
51,924 KB
testcase_39 AC 89 ms
51,964 KB
testcase_40 AC 89 ms
52,088 KB
testcase_41 AC 87 ms
51,844 KB
testcase_42 AC 89 ms
52,468 KB
testcase_43 AC 59 ms
51,156 KB
testcase_44 AC 84 ms
51,760 KB
testcase_45 AC 88 ms
51,908 KB
testcase_46 AC 83 ms
51,416 KB
testcase_47 AC 81 ms
51,500 KB
testcase_48 AC 50 ms
49,728 KB
testcase_49 AC 90 ms
52,260 KB
testcase_50 AC 59 ms
51,032 KB
testcase_51 AC 51 ms
49,436 KB
testcase_52 AC 57 ms
51,020 KB
testcase_53 AC 90 ms
51,940 KB
testcase_54 AC 82 ms
51,684 KB
testcase_55 AC 82 ms
51,840 KB
testcase_56 AC 62 ms
51,128 KB
testcase_57 AC 86 ms
52,004 KB
testcase_58 AC 59 ms
51,128 KB
testcase_59 AC 91 ms
52,088 KB
testcase_60 AC 62 ms
51,284 KB
testcase_61 AC 95 ms
52,168 KB
testcase_62 AC 84 ms
52,068 KB
testcase_63 AC 59 ms
51,124 KB
testcase_64 AC 91 ms
52,208 KB
testcase_65 AC 79 ms
51,544 KB
testcase_66 AC 55 ms
50,380 KB
testcase_67 AC 62 ms
51,336 KB
testcase_68 AC 59 ms
51,284 KB
testcase_69 AC 88 ms
51,916 KB
testcase_70 AC 83 ms
52,372 KB
testcase_71 AC 60 ms
51,676 KB
testcase_72 AC 57 ms
51,232 KB
testcase_73 AC 64 ms
51,364 KB
testcase_74 AC 61 ms
51,388 KB
testcase_75 AC 81 ms
51,524 KB
testcase_76 AC 61 ms
51,268 KB
testcase_77 AC 87 ms
51,912 KB
testcase_78 AC 80 ms
51,768 KB
testcase_79 AC 60 ms
51,168 KB
testcase_80 AC 59 ms
51,124 KB
testcase_81 AC 58 ms
51,308 KB
testcase_82 AC 75 ms
51,908 KB
testcase_83 AC 85 ms
52,084 KB
testcase_84 AC 85 ms
50,436 KB
testcase_85 AC 92 ms
52,072 KB
testcase_86 AC 85 ms
52,040 KB
testcase_87 AC 84 ms
51,984 KB
testcase_88 AC 91 ms
52,396 KB
testcase_89 AC 84 ms
51,808 KB
testcase_90 AC 91 ms
52,160 KB
testcase_91 AC 92 ms
51,964 KB
testcase_92 AC 91 ms
52,408 KB
testcase_93 AC 43 ms
47,316 KB
testcase_94 AC 43 ms
49,272 KB
testcase_95 AC 84 ms
51,664 KB
testcase_96 AC 92 ms
52,120 KB
testcase_97 AC 86 ms
51,868 KB
testcase_98 AC 83 ms
51,892 KB
testcase_99 AC 86 ms
51,964 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 adv2018;
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 Day8 {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	long[] cum;
	long[] a;
	
	void solve()
	{
		int n = ni();
		a = new long[n];
		for(int i = 0;i < n;i++)a[i] = nl();
		cum = new long[n+1];
		for(int i = 0;i < n;i++)cum[i+1] = cum[i] + a[i];
		out.println(dfs(0, n) ? "First" : "Second");
	}
	
	boolean dfs(int l, int r)
	{
		if(r-l == 0)return true;
		if(a[l] == a[r-1])return true;
		
		long num = cum[r] - cum[l];
		long den = r-l;
		int low = l, high = r;
		while(high - low > 1){
			int h = high+low>>1;
			if(a[h] * den >= num){
				high = h;
			}else{
				low = h;
			}
		}
		return !dfs(l, high) || !dfs(high, r);
	}
	
	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");
//		Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
//			@Override
//			public void run() {
//				long s = System.currentTimeMillis();
//				solve();
//				out.flush();
//				if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//			}
//		};
//		t.start();
//		t.join();
	}
	
	public static void main(String[] args) throws Exception { new Day8().run(); }
	
	private byte[] inbuf = new byte[1024];
	public 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 int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private long[] nal(int n)
	{
		long[] a = new long[n];
		for(int i = 0;i < n;i++)a[i] = nl();
		return a;
	}
	
	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[][] nmi(int n, int m) {
		int[][] map = new int[n][];
		for(int i = 0;i < n;i++)map[i] = na(m);
		return map;
	}
	
	private int ni() { return (int)nl(); }
	
	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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