結果
問題 |
No.1890 Many Sequences Sum Queries
|
ユーザー |
![]() |
提出日時 | 2023-04-19 12:55:24 |
言語 | Java (openjdk 23) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,743 bytes |
コンパイル時間 | 2,890 ms |
コンパイル使用メモリ | 91,720 KB |
実行使用メモリ | 59,984 KB |
最終ジャッジ日時 | 2024-10-14 12:53:17 |
合計ジャッジ時間 | 7,634 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 |
---|---|
sample | AC * 1 |
other | AC * 1 WA * 24 |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int q = sc.nextInt(); int[] values = new int[n + 1]; long[] sums = new long[n + 1]; long[] sumsums = new long[n + 1]; for (int i = 1; i <= n; i++) { values[i] = sc.nextInt(); sums[i] = sums[i - 1] + values[i]; sumsums[i] = sumsums[i - 1] + sums[i]; } StringBuilder sb = new StringBuilder(); while (q-- > 0) { int s = sc.nextInt(); if (sumsums[n] < s) { sb.append("-1\n"); continue; } int left = 0; int right = n; while (right - left > 1) { int m = (left + right) / 2; if (s > sumsums[m]) { left = m; } else { right = m; } } int idx = left * (left + 1) / 2; s -= sumsums[left]; right = left + 1; left = 0; while (right - left > 1) { int m = (left + right) / 2; if (s <= sums[m]) { right = m; } else { left = m; } } sb.append(idx + right).append("\n"); } System.out.print(sb); } } 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(); } }