結果
問題 | No.1702 count good string |
ユーザー | tenten |
提出日時 | 2023-04-26 08:35:00 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 131 ms / 2,000 ms |
コード長 | 2,452 bytes |
コンパイル時間 | 2,641 ms |
コンパイル使用メモリ | 86,660 KB |
実行使用メモリ | 52,480 KB |
最終ジャッジ日時 | 2024-04-27 14:28:27 |
合計ジャッジ時間 | 8,623 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 51 ms
50,372 KB |
testcase_01 | AC | 50 ms
50,388 KB |
testcase_02 | AC | 52 ms
49,984 KB |
testcase_03 | AC | 54 ms
50,460 KB |
testcase_04 | AC | 54 ms
50,236 KB |
testcase_05 | AC | 56 ms
50,408 KB |
testcase_06 | AC | 55 ms
50,308 KB |
testcase_07 | AC | 56 ms
50,444 KB |
testcase_08 | AC | 54 ms
50,336 KB |
testcase_09 | AC | 54 ms
50,380 KB |
testcase_10 | AC | 54 ms
50,348 KB |
testcase_11 | AC | 54 ms
50,380 KB |
testcase_12 | AC | 52 ms
50,320 KB |
testcase_13 | AC | 124 ms
52,352 KB |
testcase_14 | AC | 120 ms
52,288 KB |
testcase_15 | AC | 122 ms
52,212 KB |
testcase_16 | AC | 121 ms
52,188 KB |
testcase_17 | AC | 131 ms
52,028 KB |
testcase_18 | AC | 124 ms
52,312 KB |
testcase_19 | AC | 126 ms
52,360 KB |
testcase_20 | AC | 121 ms
52,480 KB |
testcase_21 | AC | 121 ms
52,400 KB |
testcase_22 | AC | 118 ms
52,472 KB |
testcase_23 | AC | 52 ms
50,088 KB |
testcase_24 | AC | 53 ms
50,016 KB |
testcase_25 | AC | 53 ms
50,328 KB |
testcase_26 | AC | 54 ms
50,360 KB |
testcase_27 | AC | 53 ms
50,412 KB |
testcase_28 | AC | 53 ms
50,396 KB |
testcase_29 | AC | 54 ms
50,348 KB |
testcase_30 | AC | 53 ms
50,472 KB |
testcase_31 | AC | 55 ms
50,156 KB |
testcase_32 | AC | 59 ms
50,172 KB |
testcase_33 | AC | 119 ms
52,068 KB |
testcase_34 | AC | 115 ms
52,084 KB |
testcase_35 | AC | 113 ms
52,364 KB |
testcase_36 | AC | 114 ms
52,216 KB |
testcase_37 | AC | 119 ms
52,404 KB |
testcase_38 | AC | 115 ms
52,060 KB |
testcase_39 | AC | 116 ms
52,132 KB |
testcase_40 | AC | 120 ms
52,352 KB |
testcase_41 | AC | 115 ms
52,064 KB |
testcase_42 | AC | 120 ms
52,348 KB |
testcase_43 | AC | 98 ms
51,560 KB |
testcase_44 | AC | 129 ms
52,252 KB |
testcase_45 | AC | 53 ms
50,252 KB |
testcase_46 | AC | 52 ms
50,152 KB |
testcase_47 | AC | 51 ms
50,268 KB |
testcase_48 | AC | 51 ms
50,224 KB |
testcase_49 | AC | 51 ms
50,452 KB |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static final int MOD = 1000000007; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); char[] inputs = sc.next().toCharArray(); char[] yukicoder = "yukicoder".toCharArray(); HashMap<Character, Integer> idxes = new HashMap<>(); for (int i = 0; i < yukicoder.length; i++) { idxes.put(yukicoder[i], i + 1); } int[][] counts = new int[yukicoder.length + 1][2]; counts[0][0] = 1; for (char c : inputs) { if (idxes.containsKey(c)) { int i = idxes.get(c); counts[i][0] += counts[i - 1][0]; counts[i][0] %= MOD; counts[i][1] += counts[i - 1][1]; counts[i][1] %= MOD; } else if (c == '?') { for (int i = 1; i <= yukicoder.length; i++) { counts[i][1] += counts[i - 1][0]; counts[i][1] %= MOD; } } } System.out.println((counts[yukicoder.length][0] + counts[yukicoder.length][1]) % MOD); } } 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(); } }