結果
| 問題 |
No.1150 シュークリームゲーム(Easy)
|
| コンテスト | |
| ユーザー |
shojin_pro
|
| 提出日時 | 2020-08-07 22:47:19 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 246 ms / 2,000 ms |
| コード長 | 3,540 bytes |
| コンパイル時間 | 2,649 ms |
| コンパイル使用メモリ | 80,236 KB |
| 実行使用メモリ | 58,408 KB |
| 最終ジャッジ日時 | 2024-09-24 23:06:17 |
| 合計ジャッジ時間 | 10,429 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 43 |
ソースコード
import java.util.*;
import java.io.*;
public class Main {
public static void main(String[] args) throws Exception {
FastScanner sc = new FastScanner(System.in);
PrintWriter pw = new PrintWriter(System.out);
int n = sc.nextInt();
int s = sc.nextInt()-1;
int t = sc.nextInt()-1;
long[] a = sc.nextLongArray(n);
long total = 0;
for(long v : a){
total += v;
}
ArrayList<Long> arr = new ArrayList<>();
int xcnt = n/2+n%2;
for(int i = -xcnt+1; i < xcnt; i++){
int now = s+i;
if(now < 0){
now += n;
}else if(now >= n){
now -= n;
}
if(Math.abs(i) > Math.min(Math.abs(now-t),Math.min(Math.abs(now-(n+t)),Math.abs((n+now)-t)))){
continue;
}else{
arr.add(a[now]);
}
}
long nowx = 0;
for(int i = 0; i < xcnt; i++){
nowx += arr.get(i);
}
long ans = nowx;
int p = 0;
int ne = xcnt;
int len = arr.size();
while(ne < len){
nowx += (arr.get(ne)-arr.get(p));
p++;
ne++;
ans = Math.max(ans,nowx);
}
long y = total-ans;
pw.println(ans-y);
pw.flush();
}
static class GeekInteger {
public static void save_sort(int[] array) {
shuffle(array);
Arrays.sort(array);
}
public static int[] shuffle(int[] array) {
int n = array.length;
Random random = new Random();
for (int i = 0, j; i < n; i++) {
j = i + random.nextInt(n - i);
int randomElement = array[j];
array[j] = array[i];
array[i] = randomElement;
}
return array;
}
}
}
class FastScanner {
private BufferedReader reader = null;
private StringTokenizer tokenizer = null;
public FastScanner(InputStream in) {
reader = new BufferedReader(new InputStreamReader(in));
tokenizer = null;
}
public String next() {
if (tokenizer == null || !tokenizer.hasMoreTokens()) {
try {
tokenizer = new StringTokenizer(reader.readLine());
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return tokenizer.nextToken();
}
public String nextLine() {
if (tokenizer == null || !tokenizer.hasMoreTokens()) {
try {
return reader.readLine();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return tokenizer.nextToken("\n");
}
public long nextLong() {
return Long.parseLong(next());
}
public int nextInt() {
return Integer.parseInt(next());
}
public double nextDouble() {
return Double.parseDouble(next());
}
public String[] nextArray(int n) {
String[] a = new String[n];
for (int i = 0; i < n; i++)
a[i] = next();
return a;
}
public int[] nextIntArray(int n) {
int[] a = new int[n];
for (int i = 0; i < n; i++)
a[i] = nextInt();
return a;
}
public long[] nextLongArray(int n) {
long[] a = new long[n];
for (int i = 0; i < n; i++)
a[i] = nextLong();
return a;
}
}
shojin_pro