結果

問題 No.615 集合に分けよう
ユーザー 37zigen37zigen
提出日時 2020-03-20 20:57:27
言語 Java11
(openjdk 11.0.7)
結果
RE   .
実行時間 -
コード長 2,693 Byte
コンパイル時間 2,396 ms
使用メモリ 41,032 KB
最終ジャッジ日時 2020-06-05 09:28:32

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
34,280 KB
testcase_01 AC 78 ms
34,260 KB
testcase_02 AC 79 ms
36,304 KB
testcase_03 AC 78 ms
36,256 KB
testcase_04 AC 76 ms
34,276 KB
testcase_05 AC 81 ms
34,276 KB
testcase_06 AC 79 ms
36,320 KB
testcase_07 AC 79 ms
34,284 KB
testcase_08 AC 81 ms
36,296 KB
testcase_09 AC 80 ms
34,268 KB
testcase_10 AC 82 ms
34,280 KB
testcase_11 AC 84 ms
38,324 KB
testcase_12 RE -
testcase_13 AC 85 ms
34,300 KB
testcase_14 AC 89 ms
34,304 KB
testcase_15 AC 135 ms
36,868 KB
testcase_16 AC 158 ms
41,032 KB
testcase_17 AC 156 ms
36,960 KB
testcase_18 AC 170 ms
37,016 KB
testcase_19 AC 162 ms
37,008 KB
testcase_20 AC 167 ms
38,996 KB
testcase_21 AC 179 ms
37,036 KB
testcase_22 AC 168 ms
40,896 KB
testcase_23 AC 111 ms
34,836 KB
testcase_24 AC 153 ms
36,968 KB
testcase_25 AC 76 ms
34,244 KB
testcase_26 AC 77 ms
34,348 KB
testcase_27 AC 91 ms
34,320 KB
testcase_28 AC 88 ms
34,320 KB
testcase_29 AC 99 ms
34,340 KB
testcase_30 RE -
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.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
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);
	}
	
	Scanner sc = new Scanner();

	void run() {
		int N=sc.nextInt();
		int K=sc.nextInt();
		long[] a=new long[N];
		for(int i=0;i<N;++i)a[i]=sc.nextLong();
		Arrays.sort(a);
		long ans=a[a.length-1]-a[0];
		ArrayList<Long> gap=new ArrayList<>();
		for(int i=0;i<a.length;++i) {
			int j=i;
			while(j+1<a.length&&a[i]==a[j+1])++j;
			i=j;
			if(j+1<a.length)gap.add(a[j+1]-a[i]);
		}
		Collections.sort(gap);
		for(int i=0;i<K-1;++i) {
			ans-=gap.get(gap.size()-1-i);
		}
		System.out.println(ans);
	}
		
	class Scanner {
		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 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();
		}
	}

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

}
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