結果

問題 No.634 硬貨の枚数1
ユーザー 37zigen37zigen
提出日時 2020-03-22 23:56:13
言語 Java11
(openjdk 11.0.7)
結果
AC  
実行時間 88 ms / 2,000 ms
コード長 2,970 Byte
コンパイル時間 2,460 ms
使用メモリ 20,928 KB
最終ジャッジ日時 2020-06-08 20:00:48

テストケース

テストケース表示
入力 結果 実行時間
使用メモリ
testcase_00 AC 78 ms
20,928 KB
testcase_01 AC 75 ms
20,908 KB
testcase_02 AC 74 ms
20,904 KB
testcase_03 AC 76 ms
20,900 KB
testcase_04 AC 75 ms
20,900 KB
testcase_05 AC 84 ms
20,812 KB
testcase_06 AC 74 ms
20,896 KB
testcase_07 AC 72 ms
20,900 KB
testcase_08 AC 75 ms
20,916 KB
testcase_09 AC 74 ms
20,904 KB
testcase_10 AC 73 ms
20,896 KB
testcase_11 AC 74 ms
20,904 KB
testcase_12 AC 74 ms
20,908 KB
testcase_13 AC 74 ms
20,892 KB
testcase_14 AC 81 ms
20,900 KB
testcase_15 AC 78 ms
20,904 KB
testcase_16 AC 77 ms
20,900 KB
testcase_17 AC 77 ms
20,904 KB
testcase_18 AC 78 ms
20,908 KB
testcase_19 AC 81 ms
20,820 KB
testcase_20 AC 78 ms
20,900 KB
testcase_21 AC 79 ms
20,904 KB
testcase_22 AC 80 ms
20,900 KB
testcase_23 AC 77 ms
20,904 KB
testcase_24 AC 74 ms
20,900 KB
testcase_25 AC 75 ms
20,900 KB
testcase_26 AC 74 ms
20,904 KB
testcase_27 AC 74 ms
20,904 KB
testcase_28 AC 75 ms
20,896 KB
testcase_29 AC 74 ms
20,900 KB
testcase_30 AC 74 ms
20,904 KB
testcase_31 AC 74 ms
20,908 KB
testcase_32 AC 74 ms
20,904 KB
testcase_33 AC 75 ms
20,896 KB
testcase_34 AC 77 ms
20,916 KB
testcase_35 AC 76 ms
20,900 KB
testcase_36 AC 77 ms
20,904 KB
testcase_37 AC 78 ms
20,908 KB
testcase_38 AC 76 ms
20,900 KB
testcase_39 AC 80 ms
20,896 KB
testcase_40 AC 79 ms
20,908 KB
testcase_41 AC 79 ms
20,896 KB
testcase_42 AC 79 ms
20,904 KB
testcase_43 AC 78 ms
20,904 KB
testcase_44 AC 80 ms
20,924 KB
testcase_45 AC 76 ms
20,916 KB
testcase_46 AC 75 ms
20,900 KB
testcase_47 AC 76 ms
20,896 KB
testcase_48 AC 77 ms
20,908 KB
testcase_49 AC 76 ms
20,916 KB
testcase_50 AC 80 ms
20,912 KB
testcase_51 AC 76 ms
20,904 KB
testcase_52 AC 78 ms
20,900 KB
testcase_53 AC 75 ms
20,904 KB
testcase_54 AC 75 ms
20,904 KB
testcase_55 AC 79 ms
20,912 KB
testcase_56 AC 78 ms
20,900 KB
testcase_57 AC 78 ms
20,908 KB
testcase_58 AC 80 ms
20,900 KB
testcase_59 AC 79 ms
20,904 KB
testcase_60 AC 80 ms
20,900 KB
testcase_61 AC 88 ms
20,900 KB
testcase_62 AC 79 ms
20,912 KB
testcase_63 AC 83 ms
20,900 KB
testcase_64 AC 79 ms
20,896 KB
testcase_65 AC 79 ms
20,904 KB
testcase_66 AC 79 ms
20,904 KB
testcase_67 AC 84 ms
20,912 KB
testcase_68 AC 79 ms
20,904 KB
testcase_69 AC 81 ms
20,908 KB
testcase_70 AC 78 ms
20,900 KB
testcase_71 AC 78 ms
20,900 KB
testcase_72 AC 82 ms
20,920 KB
testcase_73 AC 78 ms
20,904 KB
testcase_74 AC 79 ms
20,904 KB
testcase_75 AC 81 ms
20,900 KB
testcase_76 AC 76 ms
20,900 KB
testcase_77 AC 77 ms
20,904 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.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.NoSuchElementException;

public class Main {
	public static void main(String[] args) throws FileNotFoundException {
		long t = System.currentTimeMillis();
		new Main().run();
		System.err.println(System.currentTimeMillis() - t);
	}
	
	void run() {
		FastScanner sc = new FastScanner();
		PrintWriter pw=new PrintWriter(System.out);
		long N=sc.nextLong();
		long[] a=new long[4000];
		for(long i=1;i<a.length;++i)a[(int)i]=i*(i+1)/2;
		if(Arrays.binarySearch(a, N)>=0) {
			System.out.println(1);
		}else {
			boolean find=false;
			for(long i=1;i*(i+1)/2<=N;++i) {
				if(Arrays.binarySearch(a, N-i*(i+1)/2)>=0) {
					System.out.println(2);
					find=true;
					break;
				}
			}
			if(!find) {
				System.out.println(3);
			}
		}
		pw.close();
	}

	
	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}


class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
    public boolean hasNext() { skipUnprintable(); return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    
    public int nextInt() {
    	return (int)nextLong();
    }
}
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