結果
問題 | No.761 平均値ゲーム |
ユーザー |
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提出日時 | 2023-06-16 13:13:09 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 259 ms / 2,000 ms |
コード長 | 2,452 bytes |
コンパイル時間 | 2,749 ms |
コンパイル使用メモリ | 91,200 KB |
実行使用メモリ | 49,956 KB |
最終ジャッジ日時 | 2024-06-24 07:01:53 |
合計ジャッジ時間 | 20,971 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 100 |
ソースコード
import java.io.*;import java.util.*;import java.util.stream.*;public class Main {static long[] values;static long[] sums;public static void main(String[] args) throws Exception {Scanner sc = new Scanner();int n = sc.nextInt();values = new long[n + 1];sums = new long[n + 1];for (int i = 1; i <= n; i++) {values[i] = sc.nextLong();sums[i] = sums[i - 1] + values[i];}if (getTF(0, n)) {System.out.println("First");} else {System.out.println("Second");}}static boolean getTF(int start, int end) {if (end - start == 1) {return true;}if (values[end] * (end - start) == sums[end] - sums[start]) {return true;}double avg = (double)(sums[end] - sums[start]) / (end - start);int left = start;int right = end;while (right - left > 1) {int m = (left + right) / 2;if (values[m] >= avg) {right = m;} else {left = m;}}return !(getTF(start, left) && getTF(left, end));}}class Utilities {static String arrayToLineString(Object[] arr) {return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));}static String arrayToLineString(int[] arr) {return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));}}class Scanner {BufferedReader br = new BufferedReader(new InputStreamReader(System.in));StringTokenizer st = new StringTokenizer("");StringBuilder sb = new StringBuilder();public Scanner() throws Exception {}public int nextInt() throws Exception {return Integer.parseInt(next());}public long nextLong() throws Exception {return Long.parseLong(next());}public double nextDouble() throws Exception {return Double.parseDouble(next());}public int[] nextIntArray() throws Exception {return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();}public String next() throws Exception {while (!st.hasMoreTokens()) {st = new StringTokenizer(br.readLine());}return st.nextToken();}}