結果
問題 | No.31 悪のミックスジュース |
ユーザー | 37zigen |
提出日時 | 2018-04-03 07:56:08 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 952 ms / 5,000 ms |
コード長 | 3,583 bytes |
コンパイル時間 | 2,361 ms |
コンパイル使用メモリ | 78,124 KB |
実行使用メモリ | 38,092 KB |
最終ジャッジ日時 | 2024-09-14 15:54:22 |
合計ジャッジ時間 | 11,109 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | AC | 52 ms
36,532 KB |
testcase_01 | AC | 677 ms
38,092 KB |
testcase_02 | AC | 591 ms
37,684 KB |
testcase_03 | AC | 944 ms
38,028 KB |
testcase_04 | AC | 768 ms
37,908 KB |
testcase_05 | AC | 769 ms
37,936 KB |
testcase_06 | AC | 53 ms
36,676 KB |
testcase_07 | AC | 928 ms
38,092 KB |
testcase_08 | AC | 916 ms
37,916 KB |
testcase_09 | AC | 952 ms
37,772 KB |
testcase_10 | AC | 52 ms
36,748 KB |
testcase_11 | AC | 70 ms
37,512 KB |
testcase_12 | AC | 258 ms
37,872 KB |
testcase_13 | AC | 52 ms
36,660 KB |
testcase_14 | AC | 825 ms
37,964 KB |
testcase_15 | AC | 61 ms
37,112 KB |
testcase_16 | AC | 91 ms
37,692 KB |
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(); long v = sc.nextLong(); long[] c = new long[n]; long[] vol = new long[n]; long ans = 0; long INF = Long.MAX_VALUE / 3; for (int i = 0; i < n; ++i) { c[i] = sc.nextLong(); ans += c[i]; vol[i] = i + 1; } v -= n; 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]) { c[i] ^= c[j]; c[j] ^= c[i]; c[i] ^= c[j]; vol[i] ^= vol[j]; vol[j] ^= vol[i]; vol[i] ^= vol[j]; } } } if (v >= (long) n * n) { long res = v - (long) n * n; ans += (res + vol[0] - 1) / vol[0] * c[0]; v -= (res + vol[0] - 1) / vol[0] * vol[0]; } if (v <= 0) { System.out.println(ans); return; } long[] dp = new long[n * n]; Arrays.fill(dp, INF); dp[0] = 0; long add = INF; for (int i = 0; i < n; ++i) { for (int j = (int) v - 1; j >= 0; --j) { if (dp[j] == INF) continue; 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)); } }