結果
問題 | No.1890 Many Sequences Sum Queries |
ユーザー | tenten |
提出日時 | 2022-09-27 13:22:11 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,348 bytes |
コンパイル時間 | 2,101 ms |
コンパイル使用メモリ | 78,172 KB |
実行使用メモリ | 59,532 KB |
最終ジャッジ日時 | 2024-06-02 01:02:18 |
合計ジャッジ時間 | 5,715 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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
37,336 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 | 47 ms
37,164 KB |
ソースコード
import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int q = sc.nextInt(); int[] sums = new int[n]; long[] sumsums = new long[n]; sums[0] = sc.nextInt(); sumsums[0] = sums[0]; for (int i = 1; i < n; i++) { sums[i] = sums[i - 1] + sc.nextInt(); sumsums[i] = sumsums[i - 1] + sums[i]; } StringBuilder sb = new StringBuilder(); while (q-- > 0) { int x = sc.nextInt(); if (x > sumsums[n - 1]) { sb.append("-1\n"); continue; } int left1 = -1; int right1 = n - 1; while (right1 - left1 > 1) { int m = (left1 + right1) / 2; if (sumsums[m] < x) { left1 = m; } else { right1 = m; } } long y; if (right1 > 0) { y = x - sumsums[right1 - 1]; } else { y = x; } int left2 = -1; int right2 = right1; while (right2 - left2 > 1) { int m = (left2 + right2) / 2; if (sums[m] < y) { left2 = m; } else { right2 = m; } } sb.append((right1 + 1L) * right1 / 2 + right2 + 1).append("\n"); } System.out.print(sb); } } 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 String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }