結果
問題 | No.472 平均順位 |
ユーザー | wdkkou |
提出日時 | 2019-08-04 18:46:09 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 594 ms / 2,000 ms |
コード長 | 3,572 bytes |
コンパイル時間 | 1,943 ms |
コンパイル使用メモリ | 81,948 KB |
実行使用メモリ | 45,352 KB |
最終ジャッジ日時 | 2024-07-08 13:35:12 |
合計ジャッジ時間 | 7,049 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 119 ms
41,272 KB |
testcase_01 | AC | 117 ms
40,724 KB |
testcase_02 | AC | 108 ms
41,196 KB |
testcase_03 | AC | 113 ms
41,108 KB |
testcase_04 | AC | 121 ms
41,112 KB |
testcase_05 | AC | 117 ms
41,208 KB |
testcase_06 | AC | 104 ms
41,212 KB |
testcase_07 | AC | 120 ms
41,596 KB |
testcase_08 | AC | 141 ms
42,932 KB |
testcase_09 | AC | 155 ms
44,968 KB |
testcase_10 | AC | 150 ms
44,536 KB |
testcase_11 | AC | 180 ms
44,832 KB |
testcase_12 | AC | 166 ms
44,828 KB |
testcase_13 | AC | 281 ms
44,980 KB |
testcase_14 | AC | 510 ms
45,120 KB |
testcase_15 | AC | 266 ms
45,056 KB |
testcase_16 | AC | 580 ms
45,200 KB |
testcase_17 | AC | 594 ms
45,352 KB |
testcase_18 | AC | 165 ms
44,784 KB |
testcase_19 | AC | 217 ms
44,996 KB |
ソースコード
import java.util.*; import java.io.*; public class Main { public static void main(String[] args) { FastScanner sc = new FastScanner(); int n = sc.nextInt(); int p = sc.nextInt(); int[] a = new int[n]; int[] b = new int[n]; int[] c = new int[n]; for (int i = 0; i < n; i++) { a[i] = sc.nextInt(); b[i] = sc.nextInt(); c[i] = sc.nextInt(); } int[] current = new int[p + 1]; int[] next = new int[p + 1]; for (int i = 1; i <= n; i++) { for (int j = 0; j <= p; j++) { next[j] = current[j] + a[i - 1]; if (j - 1 >= 0) { // dp[i][j] = Math.min(dp[i][j], dp[i - 1][j - 1] + b[i - 1]); next[j] = Math.min(next[j], current[j - 1] + b[i - 1]); } if (j - 2 >= 0) { next[j] = Math.min(next[j], current[j - 2] + c[i - 1]); } if (j - 3 >= 0) { next[j] = Math.min(next[j], current[j - 3] + 1); } } current = (int[]) next.clone(); } // System.out.println(Arrays.toString(next)); float ans = next[p] / (float) n; System.out.printf("%.5f%n", ans); } } class FastScanner { 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 static 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()); } }