結果
問題 | No.1512 作文 |
ユーザー | tenten |
提出日時 | 2023-04-17 15:04:08 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 923 ms / 2,000 ms |
コード長 | 3,071 bytes |
コンパイル時間 | 3,060 ms |
コンパイル使用メモリ | 95,288 KB |
実行使用メモリ | 113,560 KB |
最終ジャッジ日時 | 2024-04-20 19:39:58 |
合計ジャッジ時間 | 11,345 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 49 ms
37,008 KB |
testcase_01 | AC | 48 ms
37,164 KB |
testcase_02 | AC | 47 ms
37,100 KB |
testcase_03 | AC | 46 ms
37,216 KB |
testcase_04 | AC | 441 ms
74,332 KB |
testcase_05 | AC | 466 ms
74,696 KB |
testcase_06 | AC | 434 ms
75,336 KB |
testcase_07 | AC | 411 ms
74,400 KB |
testcase_08 | AC | 398 ms
74,740 KB |
testcase_09 | AC | 98 ms
39,316 KB |
testcase_10 | AC | 95 ms
39,556 KB |
testcase_11 | AC | 95 ms
39,764 KB |
testcase_12 | AC | 100 ms
39,868 KB |
testcase_13 | AC | 98 ms
39,636 KB |
testcase_14 | AC | 136 ms
42,512 KB |
testcase_15 | AC | 133 ms
42,436 KB |
testcase_16 | AC | 139 ms
42,328 KB |
testcase_17 | AC | 137 ms
42,384 KB |
testcase_18 | AC | 130 ms
42,384 KB |
testcase_19 | AC | 135 ms
42,460 KB |
testcase_20 | AC | 133 ms
42,468 KB |
testcase_21 | AC | 52 ms
37,260 KB |
testcase_22 | AC | 47 ms
37,008 KB |
testcase_23 | AC | 53 ms
37,224 KB |
testcase_24 | AC | 52 ms
37,336 KB |
testcase_25 | AC | 54 ms
37,188 KB |
testcase_26 | AC | 49 ms
36,872 KB |
testcase_27 | AC | 49 ms
37,264 KB |
testcase_28 | AC | 48 ms
36,704 KB |
testcase_29 | AC | 48 ms
37,152 KB |
testcase_30 | AC | 46 ms
36,968 KB |
testcase_31 | AC | 49 ms
37,264 KB |
testcase_32 | AC | 51 ms
37,276 KB |
testcase_33 | AC | 47 ms
37,096 KB |
testcase_34 | AC | 54 ms
37,176 KB |
testcase_35 | AC | 101 ms
40,036 KB |
testcase_36 | AC | 104 ms
39,948 KB |
testcase_37 | AC | 96 ms
38,888 KB |
testcase_38 | AC | 109 ms
39,684 KB |
testcase_39 | AC | 108 ms
40,292 KB |
testcase_40 | AC | 607 ms
113,560 KB |
testcase_41 | AC | 923 ms
85,532 KB |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static ArrayList<Unit> units = new ArrayList<>(); static int[][] dp; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); for (int i = 0; i < n; i++) { char[] arr = sc.next().toCharArray(); if (check(arr)) { units.add(new Unit(arr[0] - 'a', arr[arr.length - 1] - 'a', arr.length)); } } Collections.sort(units); dp = new int[units.size()][26]; for (int[] arr : dp) { Arrays.fill(arr, -1); } System.out.println(dfw(units.size() - 1, 25)); } static boolean check(char[] arr) { for (int i = 0; i < arr.length - 1; i++) { if (arr[i] > arr[i + 1]) { return false; } } return true; } static int dfw(int idx, int v) { if (idx < 0) { return 0; } if (dp[idx][v] < 0) { dp[idx][v] = dfw(idx - 1, v); if (v >= units.get(idx).right) { dp[idx][v] = Math.max(dp[idx][v], dfw(idx - 1, units.get(idx).left) + units.get(idx).length); } } return dp[idx][v]; } static class Unit implements Comparable<Unit> { int left; int right; int length; public Unit(int left, int right, int length) { this.left = left; this.right = right; this.length = length; } public int compareTo(Unit another) { if (left == another.left) { return right - another.right; } else { return left - another.left; } } } } class Utilities { static String arrayToLineString(Object[] arr) { return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n")); } static String arrayToLineString(int[] arr) { return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new)); } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public int[] nextIntArray() throws Exception { return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }