結果
| 問題 |
No.370 道路の掃除
|
| コンテスト | |
| ユーザー |
uafr_cs
|
| 提出日時 | 2017-10-29 22:23:07 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 68 ms / 2,000 ms |
| コード長 | 2,508 bytes |
| コンパイル時間 | 2,188 ms |
| コンパイル使用メモリ | 79,224 KB |
| 実行使用メモリ | 37,888 KB |
| 最終ジャッジ日時 | 2024-11-22 05:40:16 |
| 合計ジャッジ時間 | 5,253 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 34 |
ソースコード
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeMap;
public class Main {
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
final int N = sc.nextInt();
final int M = sc.nextInt();
int plus = 0, minus = 0;
int[] pos = new int[M];
for(int i = 0; i < M; i++){
pos[i] = sc.nextInt();
if(pos[i] >= 0){
plus++;
}else{
minus++;
}
}
int[] rights = new int[plus];
int[] lefts = new int[minus];
{
int pc = 0, mc = 0;
for(int i = 0; i < M; i++){
if(pos[i] >= 0){
rights[pc++] = pos[i];
}else{
lefts[mc++] = -pos[i];
}
}
}
Arrays.sort(rights);
Arrays.sort(lefts);
//System.out.println(Arrays.toString(rights));
//System.out.println(Arrays.toString(lefts));
long answer = Long.MAX_VALUE;
for(int right_end = 0; right_end <= N; right_end++){
if(right_end > rights.length){ continue; }
final int left_end = N - right_end;
if(left_end > lefts.length){ continue; }
final long right_cost = right_end == 0 ? 0 : rights[right_end - 1];
final long left_cost = left_end == 0 ? 0 : lefts[left_end - 1];
final long fst_right = right_cost * 2 + left_cost;
final long fst_left = left_cost * 2 + right_cost;
answer = Math.min(answer, Math.min(fst_right, fst_left));
//System.out.println(right_end + " " + left_end);
}
System.out.println(answer);
}
public static class Scanner implements Closeable {
private BufferedReader br;
private StringTokenizer tok;
public Scanner(InputStream is) throws IOException {
br = new BufferedReader(new InputStreamReader(is));
}
private void getLine() throws IOException {
while (!hasNext()) {
tok = new StringTokenizer(br.readLine());
}
}
private boolean hasNext() {
return tok != null && tok.hasMoreTokens();
}
public String next() throws IOException {
getLine();
return tok.nextToken();
}
public int nextInt() throws IOException {
return Integer.parseInt(next());
}
public long nextLong() throws IOException {
return Long.parseLong(next());
}
public void close() throws IOException {
br.close();
}
}
}
uafr_cs