AtCoder Beginner Contest 002

Submission #7051987

Source codeソースコード

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		final int N = sc.nextInt();
		final int M = sc.nextInt();

		final int friendLength = N*(N-1)/2;
		final boolean[] isFriend = new boolean[friendLength];
		for (int i = 0; i < M; i++) {
			int xi = sc.nextInt();
			int yi = sc.nextInt();
			isFriend[(2*N-xi-2)*(xi-1)/2 + yi-2] = true;
		}
		sc.close();

		int intOut = 1;
		int x;
		int y;
		for(int bitNumber = 1; bitNumber <= (1 << N) - 1; bitNumber++){
			int groupL = Integer.bitCount(bitNumber);
			if(groupL <= intOut){
				continue;
			}

			boolean flag = true;
			for (int i = 0; i < isFriend.length; i++) {
				x = (int)(2*N+1-Math.sqrt((2*N-1)*(2*N-1)-8*i));
				y = i - x;
				if(((bitNumber >> x) & (bitNumber >> y) & 1) == 1){
					if(!isFriend[(2*N-x-3)*x/2 + y-1]){
						flag = false; break;
					}
				}
			}
			if(flag){
				intOut = groupL;
			}

		}

		String strOut = Integer.toString(intOut);
		System.out.println(strOut);
	}
}

Submission

Task問題 D - 派閥
User nameユーザ名 こーへー
Created time投稿日時
Language言語 Java8 (OpenJDK 1.8.0)
Status状態 RE
Score得点 0
Source lengthソースコード長 1077 Byte
File nameファイル名
Exec time実行時間 ms
Memory usageメモリ使用量 -

Test case

Set

Set name Score得点 / Max score Cases
all 0 / 100 00_sample_01.txt,00_sample_02.txt,00_sample_03.txt,00_sample_04.txt,test_01.txt,test_02.txt,test_03.txt,test_04.txt,test_05.txt,test_06.txt,test_07.txt,test_08.txt,test_09.txt,test_10.txt,test_11.txt,test_12.txt,test_13.txt,test_14.txt,test_15.txt,test_16.txt,test_17.txt,test_18.txt,test_19.txt,test_20.txt,test_21.txt,test_22.txt,test_23.txt,test_24.txt,test_25.txt,test_26.txt,test_27.txt,test_28.txt,test_29.txt,test_30.txt,test_31.txt,test_32.txt,test_33.txt,test_34.txt,test_35.txt,test_36.txt,test_37.txt,test_38.txt,test_39.txt,test_40.txt,test_41.txt,test_42.txt,test_43.txt,test_44.txt,test_45.txt,test_46.txt,test_47.txt,test_48.txt,test_49.txt,test_50.txt,test_51.txt,test_52.txt,test_53.txt,test_54.txt,test_55.txt,test_56.txt,test_57.txt,test_58.txt,test_59.txt,test_60.txt,test_61.txt,test_62.txt,test_63.txt,test_64.txt,test_65.txt,test_66.txt,test_67.txt,test_68.txt,test_69.txt,test_70.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
00_sample_01.txt AC 92 ms 17108 KB
00_sample_02.txt WA
00_sample_03.txt WA
00_sample_04.txt RE
test_01.txt AC 92 ms 21716 KB
test_02.txt AC 93 ms 17876 KB
test_03.txt WA
test_04.txt WA
test_05.txt WA
test_06.txt WA
test_07.txt WA
test_08.txt AC 97 ms 20692 KB
test_09.txt AC 98 ms 19796 KB
test_10.txt WA
test_11.txt WA
test_12.txt RE
test_13.txt AC 94 ms 19028 KB
test_14.txt AC 91 ms 18764 KB
test_15.txt WA
test_16.txt AC 98 ms 21584 KB
test_17.txt AC 98 ms 21076 KB
test_18.txt WA
test_19.txt RE
test_20.txt RE
test_21.txt AC 96 ms 18900 KB
test_22.txt AC 98 ms 19796 KB
test_23.txt AC 107 ms 21844 KB
test_24.txt RE
test_25.txt AC 93 ms 19412 KB
test_26.txt RE
test_27.txt WA
test_28.txt AC 92 ms 18516 KB
test_29.txt AC 97 ms 17748 KB
test_30.txt AC 107 ms 19284 KB
test_31.txt RE
test_32.txt WA
test_33.txt RE
test_34.txt AC 96 ms 18768 KB
test_35.txt RE
test_36.txt RE
test_37.txt RE
test_38.txt RE
test_39.txt RE
test_40.txt RE
test_41.txt RE
test_42.txt RE
test_43.txt RE
test_44.txt RE
test_45.txt RE
test_46.txt RE
test_47.txt RE
test_48.txt RE
test_49.txt RE
test_50.txt RE
test_51.txt RE
test_52.txt RE
test_53.txt RE
test_54.txt RE
test_55.txt RE
test_56.txt RE
test_57.txt RE
test_58.txt RE
test_59.txt RE
test_60.txt RE
test_61.txt RE
test_62.txt WA
test_63.txt RE
test_64.txt RE
test_65.txt RE
test_66.txt RE
test_67.txt RE
test_68.txt RE
test_69.txt RE
test_70.txt RE