結果
問題 | No.1890 Many Sequences Sum Queries |
ユーザー | tenten |
提出日時 | 2023-08-08 11:52:07 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,674 bytes |
コンパイル時間 | 3,401 ms |
コンパイル使用メモリ | 97,820 KB |
実行使用メモリ | 46,376 KB |
最終ジャッジ日時 | 2024-11-08 17:30:51 |
合計ジャッジ時間 | 8,183 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 47 ms
36,888 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | AC | 48 ms
37,188 KB |
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(); long[] sum = new long[n + 1]; long[] sumsum = new long[n + 1]; for (int i = 1; i <= n; i++) { sum[i] = sum[i - 1] + sc.nextInt(); sumsum[i] = sumsum[i - 1] + sum[i]; } StringBuilder sb = new StringBuilder(); while (q-- > 0) { long x = sc.nextInt(); if (sumsum[n] < x) { sb.append("-1\n"); continue; } int left = 0; int right = n; while (right - left > 1) { int m = (left + right) / 2; if (sumsum[m] >= x) { right = m; } else { left = m; } } long ans = (left + 1L) * left / 2; x -= sumsum[left]; left = 0; right = n; while (right - left > 1) { int m = (left + right) / 2; if (sum[m] >= x) { right = m; } else { left = m; } } ans += right; sb.append(ans).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(); } }