結果
問題 | No.615 集合に分けよう |
ユーザー |
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提出日時 | 2017-12-15 00:27:53 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 183 ms / 2,000 ms |
コード長 | 3,802 bytes |
コンパイル時間 | 2,394 ms |
コンパイル使用メモリ | 83,460 KB |
実行使用メモリ | 43,108 KB |
最終ジャッジ日時 | 2024-12-14 13:48:37 |
合計ジャッジ時間 | 6,339 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 26 |
ソースコード
import java.io.*;import java.util.*;import java.math.*;// import java.awt.Point;public class Main {InputStream is;PrintWriter out;String INPUT = "";long MOD = 1_000_000_007;int inf = Integer.MAX_VALUE;void solve(){int n = ni();int k = ni();long[] a = new long[n];for(int i = 0; i < n; i++){a[i] = nl();}Arrays.sort(a);long[] b = new long[n-1];long ans = 0;for(int i = 0; i < n-1; i++){b[i] = a[i+1] - a[i];ans += b[i];}Arrays.sort(b);for(int i = 0; i < k-1; i++){ans -= b[n-2-i];}out.println(ans);}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 Main().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) && 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)); }}