結果
| 問題 |
No.489 株に挑戦
|
| コンテスト | |
| ユーザー |
tanzaku
|
| 提出日時 | 2017-02-24 21:09:05 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 182 ms / 1,000 ms |
| コード長 | 3,192 bytes |
| コンパイル時間 | 5,725 ms |
| コンパイル使用メモリ | 86,032 KB |
| 実行使用メモリ | 42,240 KB |
| 最終ジャッジ日時 | 2024-07-19 22:51:18 |
| 合計ジャッジ時間 | 9,936 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 35 |
ソースコード
import java.io.*;
import java.util.*;
public class _489_Validate {
public static void main(String[] args) throws IOException {
new _489_Validate().solve();
}
void solve() throws IOException {
try (final InputValidator in = new InputValidator(System.in)) {
// try (final Scanner in = new Scanner(System.in)) {
int n = in.nextInt(1, 100000);
in.space();
int d = in.nextInt(1, n);
in.space();
int k = in.nextInt(1, 1000000);
in.newLine();
int[] x = new int[n];
for (int i = 0; i < n; i++) {
x[i] = -in.nextInt(1, 1000000);
in.newLine();
}
SlideMinimum slide = new SlideMinimum(x, d + 1);
int l = 0, r = 0;
long ans = 0;
for (int i = n - 1; i >= 0; i--) {
// dump(i, slide.min(i), ans, -slide.min(i) + x[i]);
final int v = -slide.min(i) + x[i];
if (ans <= v) {
ans = v;
l = i;
r = slide.minIdx(i);
}
}
System.out.println(ans * k);
if (ans != 0) {
System.out.println(l + " " + r);
}
}
}
// [i,i+m)
static public class SlideMinimum {
int[] b;
int[] idx;
public SlideMinimum(int[] a, int m) {
final int n = a.length;
b = new int[n];
idx = new int[n];
int s, t;
s = t = 0;
int[] deq = new int[n];
for (int i = 0; i < n + m - 1; i++) {
while( s < t && i < n && a[deq[t-1]] > a[i]) t--;
if (i < n) deq[t++] = i;
if (i - m + 1 >= 0) {
b[i-m+1] = a[idx[i-m+1] = deq[s]];
if(deq[s] == i - m + 1) {
s++;
}
}
}
}
// min [idx..idx+m)
public int min(int idx) { return b[idx]; }
public int minIdx(int i) { return idx[i]; }
}
// for debug
static void dump(Object... o) {
System.err.println(Arrays.deepToString(o));
}
static class InputValidator implements Closeable {
final InputStream in;
final int NO_BUFFER = -2;
int buffer;
public InputValidator(final InputStream in) {
this.in = in;
buffer = NO_BUFFER;
}
int read() throws IOException {
final int res = buffer == NO_BUFFER ? in.read() : buffer;
buffer = NO_BUFFER;
return res;
}
void unread(int ch) throws IOException {
buffer = ch;
}
// [low, high]
long nextLong(long low, long high) throws IOException {
long val = 0;
int ch = -1;
while (true) {
ch = read();
if (!Character.isDigit(ch)) break;
val = val * 10 + ch - '0';
check(val <= high);
}
check(ch >= 0);
check(val >= low);
unread(ch);
return val;
}
int nextInt(int low, int high) throws IOException { return (int)nextLong(low, high); }
int[] nextInts(int n, int low, int high) throws IOException {
int[] res = new int[n];
for (int i = 0; i < n; i++) {
res[i] = nextInt(low, high);
if (i + 1 != n) space();
}
newLineOrEOF();
return res;
}
void space() throws IOException { int ch = read(); check(ch == ' '); }
void newLine() throws IOException {
int ch = read();
if (ch == '\r') ch = read();
check(ch == '\n');
}
void newLineOrEOF() throws IOException { int ch = read(); check(ch == '\r' || ch == '\n' || ch < 0); }
void check(boolean b) { if (!b) throw new RuntimeException(); }
@Override
public void close() throws IOException {
}
}
}
tanzaku