結果
問題 | No.2276 I Want AC |
ユーザー |
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提出日時 | 2023-12-12 08:24:19 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 117 ms / 2,000 ms |
コード長 | 2,181 bytes |
コンパイル時間 | 3,696 ms |
コンパイル使用メモリ | 84,940 KB |
実行使用メモリ | 40,780 KB |
最終ジャッジ日時 | 2024-09-27 04:47:31 |
合計ジャッジ時間 | 11,189 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 56 |
ソースコード
import java.io.*;import java.util.*;import java.util.stream.*;public class Main {public static void main(String[] args) throws Exception {Scanner sc = new Scanner();int n = sc.nextInt();char[] inputs = sc.next().toCharArray();int aCount = 0;long current = 0;for (char c : inputs) {if (c == 'C') {current += aCount;} else {aCount++;}}long ans = current;int cCount = 0;for (int i = n - 1; i >= 0; i--) {if (inputs[i] == 'A') {aCount--;} else if (inputs[i] == 'C') {cCount++;} else {aCount--;current -= cCount;current += aCount;cCount++;ans = Math.max(ans, current);}}System.out.println(ans);}}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();}}