結果
問題 | No.1740 Alone 'a' |
ユーザー | tenten |
提出日時 | 2023-04-13 10:52:21 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,276 bytes |
コンパイル時間 | 3,088 ms |
コンパイル使用メモリ | 90,784 KB |
実行使用メモリ | 61,000 KB |
最終ジャッジ日時 | 2024-10-09 09:50:39 |
合計ジャッジ時間 | 8,967 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 | WA | - |
testcase_01 | AC | 52 ms
50,440 KB |
testcase_02 | AC | 50 ms
36,696 KB |
testcase_03 | AC | 182 ms
61,000 KB |
testcase_04 | AC | 180 ms
59,416 KB |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | AC | 51 ms
37,008 KB |
testcase_09 | WA | - |
testcase_10 | AC | 51 ms
37,104 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static final int MOD = 998244353; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); char[] inputs = sc.next().toCharArray(); int count = 0; long[][] dp = new long[n + 1][2]; for (int i = 1; i <= n; i++) { dp[i][0] = dp[i - 1][0] * 25 % MOD; dp[i][1] = (dp[i - 1][0] + dp[i - 1][1] * 25) % MOD; int current = inputs[i - 1] - 'a'; if (current > 0) { current--; } if (count == 0) { dp[i][0] += current; dp[i][0] %= MOD; dp[i][1]++; dp[i][1] %= MOD; } else if (count == 1) { dp[i][1] += current; dp[i][1] %= MOD; } if (inputs[i - 1] == 'a') { count++; } } System.out.println(dp[n][1]); } } 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(); } }