結果
| 問題 | No.1012 荷物収集 |
| コンテスト | |
| ユーザー |
hiromi_ayase
|
| 提出日時 | 2020-03-21 10:06:06 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 829 ms / 2,000 ms |
| コード長 | 3,745 bytes |
| コンパイル時間 | 3,078 ms |
| コンパイル使用メモリ | 90,848 KB |
| 実行使用メモリ | 67,448 KB |
| 最終ジャッジ日時 | 2024-12-18 00:00:05 |
| 合計ジャッジ時間 | 24,674 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 41 |
ソースコード
import java.util.Arrays;
public class Main {
private static void solve() {
int n = ni();
int q = ni();
long[][] p = new long[n][2];
for (int i = 0; i < n; i++) {
p[i][0] = nl(); // x
p[i][1] = nl(); // w
}
Arrays.sort(p, (o1, o2) -> Long.signum(o1[0] - o2[0]));
// p [0:x, w, total w l, total sum l, total w r, total sum r]
long[][] ql = new long[n][2];
long[][] qr = new long[n][2];
ql[0][1] = p[0][1];
for (int i = 1; i < n; i++) {
ql[i][0] = ql[i - 1][0] + ql[i - 1][1] * (p[i][0] - p[i - 1][0]);
ql[i][1] = ql[i - 1][1] + p[i][1];
}
qr[n - 1][1] = p[n - 1][1];
for (int i = n - 2; i >= 0; i--) {
qr[i][0] = qr[i + 1][0] + qr[i + 1][1] * (p[i + 1][0] - p[i][0]);
qr[i][1] = qr[i + 1][1] + p[i][1];
}
for (int i = 0; i < q; i++) {
long x = nl();
int idx = lowerBound(p, x);
long ret = 0;
if (idx > 0) {
ret += (x - p[idx - 1][0]) * ql[idx - 1][1] + ql[idx - 1][0];
}
if (idx <= n - 1) {
ret += (p[idx][0] - x) * qr[idx][1] + qr[idx][0];
}
out.println(ret);
}
}
public static int lowerBound(long[][] a, long v) {
int low = -1, high = a.length;
while (high - low > 1) {
int h = high + low >>> 1;
if (a[h][0] >= v) {
high = h;
} else {
low = h;
}
}
return high;
}
public static void main(String[] args) {
new Thread(null, new Runnable() {
@Override
public void run() {
long start = System.currentTimeMillis();
String debug = args.length > 0 ? args[0] : null;
if (debug != null) {
try {
is = java.nio.file.Files.newInputStream(java.nio.file.Paths.get(debug));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
reader = new java.io.BufferedReader(new java.io.InputStreamReader(is), 32768);
solve();
out.flush();
tr((System.currentTimeMillis() - start) + "ms");
}
}, "", 64000000).start();
}
private static java.io.InputStream is = System.in;
private static java.io.PrintWriter out = new java.io.PrintWriter(System.out);
private static java.util.StringTokenizer tokenizer = null;
private static java.io.BufferedReader reader;
public static String next() {
while (tokenizer == null || !tokenizer.hasMoreTokens()) {
try {
tokenizer = new java.util.StringTokenizer(reader.readLine());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
return tokenizer.nextToken();
}
private static double nd() {
return Double.parseDouble(next());
}
private static long nl() {
return Long.parseLong(next());
}
private static int[] na(int n) {
int[] a = new int[n];
for (int i = 0; i < n; i++)
a[i] = ni();
return a;
}
private static char[] ns() {
return next().toCharArray();
}
private static long[] nal(int n) {
long[] a = new long[n];
for (int i = 0; i < n; i++)
a[i] = nl();
return a;
}
private static int[][] ntable(int n, int m) {
int[][] table = new int[n][m];
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
table[i][j] = ni();
}
}
return table;
}
private static int[][] nlist(int n, int m) {
int[][] table = new int[m][n];
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
table[j][i] = ni();
}
}
return table;
}
private static int ni() {
return Integer.parseInt(next());
}
private static void tr(Object... o) {
if (is != System.in)
System.out.println(java.util.Arrays.deepToString(o));
}
}
hiromi_ayase