結果
| 問題 |
No.31 悪のミックスジュース
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2018-04-03 07:29:33 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,419 bytes |
| コンパイル時間 | 2,516 ms |
| コンパイル使用メモリ | 78,652 KB |
| 実行使用メモリ | 51,852 KB |
| 最終ジャッジ日時 | 2024-06-26 07:05:55 |
| 合計ジャッジ時間 | 12,147 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 5 WA * 12 |
ソースコード
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.NoSuchElementException;
public class Main implements Runnable {
public static void main(String[] args) {
new Thread(null, new Main(), "", Runtime.getRuntime().maxMemory()).start();
}
public void run() {
Scanner sc = new Scanner();
int n = sc.nextInt();
int v = sc.nextInt();
long[] c = new long[n];
long[] vol = new long[n];
long ans = 0;
for (int i = 0; i < n; ++i) {
c[i] = sc.nextLong();
ans += c[i];
--v;
vol[i] = i + 1;
}
for (int i = 1; i < n; ++i) {
c[i] = c[i] + c[i - 1];
}
for (int i = 0; i < n; ++i) {
for (int j = i + 1; j < n; ++j) {
if (c[i] * vol[j] > c[j] * vol[i]) {
i ^= j;
j ^= i;
i ^= j;
}
}
}
if (v > (long) n * n) {
long res = v - (long) n * n;
ans += res / vol[0] * c[0];
v -= res / vol[0] * vol[0];
}
if (v <= 0) {
System.out.println(ans);
return;
}
long[] dp = new long[n * n];
Arrays.fill(dp, Long.MAX_VALUE / 3);
dp[0] = 0;
long add = Long.MAX_VALUE / 3;
for (int i = 0; i < n; ++i) {
for (int j = n * n - 1; j >= 0; --j) {
for (int k = 1;; ++k) {
if (j + k * vol[i] >= v) {
add = Math.min(add, dp[j] + k * c[i]);
break;
} else {
dp[j + (int) (k * vol[i])] = Math.min(dp[j + (int) (k * vol[i])], dp[j] + k * c[i]);
}
}
}
}
System.out.println(ans+add);
}
class Scanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
} else {
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() {
if (hasNextByte())
return buffer[ptr++];
else
return -1;
}
private boolean isPrintableChar(int c) {
return 33 <= c && c <= 126;
}
public boolean hasNext() {
while (hasNextByte() && !isPrintableChar(buffer[ptr]))
ptr++;
return hasNextByte();
}
public String next() {
if (!hasNext())
throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while (isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext())
throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while (true) {
if ('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
} else if (b == -1 || !isPrintableChar(b)) {
return minus ? -n : n;
} else {
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE)
throw new NumberFormatException();
return (int) nl;
}
public double nextDouble() {
return Double.parseDouble(next());
}
}
static void tr(Object... objects) {
System.out.println(Arrays.deepToString(objects));
}
}