結果
問題 | No.484 収穫 |
ユーザー | zimpha |
提出日時 | 2017-03-30 21:41:55 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 274 ms / 3,000 ms |
コード長 | 3,551 bytes |
コンパイル時間 | 2,029 ms |
コンパイル使用メモリ | 77,948 KB |
実行使用メモリ | 122,788 KB |
最終ジャッジ日時 | 2024-04-21 14:30:26 |
合計ジャッジ時間 | 6,775 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 46 ms
36,992 KB |
testcase_01 | AC | 46 ms
37,056 KB |
testcase_02 | AC | 48 ms
37,052 KB |
testcase_03 | AC | 45 ms
37,016 KB |
testcase_04 | AC | 47 ms
37,304 KB |
testcase_05 | AC | 46 ms
37,232 KB |
testcase_06 | AC | 46 ms
37,032 KB |
testcase_07 | AC | 48 ms
37,040 KB |
testcase_08 | AC | 47 ms
37,012 KB |
testcase_09 | AC | 56 ms
38,164 KB |
testcase_10 | AC | 60 ms
38,472 KB |
testcase_11 | AC | 58 ms
37,924 KB |
testcase_12 | AC | 270 ms
122,780 KB |
testcase_13 | AC | 265 ms
122,720 KB |
testcase_14 | AC | 262 ms
122,472 KB |
testcase_15 | AC | 265 ms
122,788 KB |
testcase_16 | AC | 274 ms
122,604 KB |
testcase_17 | AC | 270 ms
122,472 KB |
testcase_18 | AC | 261 ms
122,328 KB |
testcase_19 | AC | 271 ms
122,720 KB |
testcase_20 | AC | 271 ms
122,464 KB |
testcase_21 | AC | 268 ms
122,604 KB |
testcase_22 | AC | 265 ms
122,664 KB |
testcase_23 | AC | 267 ms
122,716 KB |
ソースコード
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top * * @author Chiaki.Hoshinomori */ public class Main { public static void main(String[] args) { InputStream inputStream = System.in; OutputStream outputStream = System.out; InputReader in = new InputReader(inputStream); PrintWriter out = new PrintWriter(outputStream); Task484 solver = new Task484(); solver.solve(1, in, out); out.close(); } static class Task484 { long[][][] dp; long[] A; public void solve(int testNumber, InputReader in, PrintWriter out) { int n = in.nextInt(); A = in.nextLongArray(n); dp = new long[2][][]; dp[0] = new long[n][]; dp[1] = new long[n][]; for (int i = 0; i < n; i++) { dp[0][i] = new long[n]; dp[1][i] = new long[n]; Arrays.fill(dp[0][i], -1); Arrays.fill(dp[1][i], -1); } long ret = 1l << 60; for (int i = 0; i < n; i++) { ret = Math.min(ret, solve(i, i, 0)); } out.println(ret); } private long solve(int l, int r, int s) { if (dp[s][l][r] >= 0) return dp[s][l][r]; long ret = 1l << 60; if (l == 0 && r == A.length - 1) { if (s == 0) dp[s][l][r] = A[l]; else dp[s][l][r] = A[r]; return dp[s][l][r]; } if (s == 0) { if (l > 0) { ret = Math.min(ret, solve(l - 1, r, 0) + 1); } if (r + 1 < A.length) { ret = Math.min(ret, solve(l, r + 1, 1) + r - l + 1); } ret = Math.max(ret, A[l]); } else { if (l > 0) { ret = Math.min(ret, solve(l - 1, r, 0) + r - l + 1); } if (r + 1 < A.length) { ret = Math.min(ret, solve(l, r + 1, 1) + 1); } ret = Math.max(ret, A[r]); } return dp[s][l][r] = ret; } } static class InputReader { public BufferedReader reader; public StringTokenizer tokenizer; public InputReader(InputStream stream) { reader = new BufferedReader(new InputStreamReader(stream), 32768); tokenizer = null; } public String next() { while (tokenizer == null || !tokenizer.hasMoreTokens()) { try { tokenizer = new StringTokenizer(reader.readLine()); } catch (IOException e) { throw new RuntimeException(e); } } return tokenizer.nextToken(); } public int nextInt() { return Integer.parseInt(next()); } public long nextLong() { return Long.parseLong(next()); } public long[] nextLongArray(int n) { long[] r = new long[n]; for (int i = 0; i < n; i++) { r[i] = nextLong(); } return r; } } }