結果
| 問題 |
No.1890 Many Sequences Sum Queries
|
| ユーザー |
tenten
|
| 提出日時 | 2022-08-09 11:21:27 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,508 bytes |
| コンパイル時間 | 2,215 ms |
| コンパイル使用メモリ | 78,036 KB |
| 実行使用メモリ | 46,452 KB |
| 最終ジャッジ日時 | 2024-09-19 17:53:35 |
| 合計ジャッジ時間 | 6,693 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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.*;
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[] totals = new long[n + 1];
for (int i = 1; i <= n; i++) {
values[i] = sc.nextInt();
sums[i] = sums[i - 1] + values[i];
totals[i] = totals[i - 1] + sums[i];
}
StringBuilder sb = new StringBuilder();
while (q-- > 0) {
int x = sc.nextInt();
if (totals[n] < x) {
sb.append(-1).append("\n");
continue;
}
int left = 0;
int right = n;
while (right - left > 1) {
int m = (left + right) / 2;
if (totals[m] >= x) {
right = m;
} else {
left = m;
}
}
x -= totals[left];
long ans = (left + 1L) * left / 2;
left = 0;
right = n;
while (right - left > 1) {
int m = (left + right) / 2;
if (sums[m] >= x) {
right = m;
} else {
left = m;
}
}
sb.append(ans + right).append("\n");
}
System.out.print(sb);
}
static class Path implements Comparable<Path> {
int idx;
int value;
public Path(int idx, int value) {
this.idx = idx;
this.value = value;
}
public int compareTo(Path another) {
return value - another.value;
}
}
}
class Scanner {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer("");
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();
}
}
tenten