結果
問題 | No.2021 Not A but B |
ユーザー | 37zigen |
提出日時 | 2022-07-29 21:41:12 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 108 ms / 2,000 ms |
コード長 | 3,144 bytes |
コンパイル時間 | 4,490 ms |
コンパイル使用メモリ | 77,384 KB |
実行使用メモリ | 39,744 KB |
最終ジャッジ日時 | 2024-07-19 14:04:29 |
合計ジャッジ時間 | 7,600 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
(要ログイン)
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 | 47 ms
36,992 KB |
testcase_01 | AC | 46 ms
36,736 KB |
testcase_02 | AC | 47 ms
36,864 KB |
testcase_03 | AC | 46 ms
36,400 KB |
testcase_04 | AC | 46 ms
36,736 KB |
testcase_05 | AC | 47 ms
36,992 KB |
testcase_06 | AC | 49 ms
36,656 KB |
testcase_07 | AC | 47 ms
36,736 KB |
testcase_08 | AC | 92 ms
39,672 KB |
testcase_09 | AC | 104 ms
39,736 KB |
testcase_10 | AC | 103 ms
39,744 KB |
testcase_11 | AC | 101 ms
39,628 KB |
testcase_12 | AC | 103 ms
39,316 KB |
testcase_13 | AC | 100 ms
39,456 KB |
testcase_14 | AC | 102 ms
39,600 KB |
testcase_15 | AC | 101 ms
39,436 KB |
testcase_16 | AC | 102 ms
39,552 KB |
testcase_17 | AC | 100 ms
39,404 KB |
testcase_18 | AC | 105 ms
39,552 KB |
testcase_19 | AC | 97 ms
39,488 KB |
testcase_20 | AC | 108 ms
39,656 KB |
testcase_21 | AC | 73 ms
37,516 KB |
testcase_22 | AC | 61 ms
37,308 KB |
testcase_23 | AC | 63 ms
37,556 KB |
testcase_24 | AC | 51 ms
37,060 KB |
testcase_25 | AC | 58 ms
37,572 KB |
testcase_26 | AC | 97 ms
39,636 KB |
testcase_27 | AC | 98 ms
39,676 KB |
testcase_28 | AC | 96 ms
39,420 KB |
testcase_29 | AC | 98 ms
39,468 KB |
ソースコード
import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.NoSuchElementException; public class Main implements Runnable { public static void main(String[] args) { new Thread(null, new Main(), "", Runtime.getRuntime().maxMemory()).start(); } final long mod = 998244353; public void run() { FastScanner sc=new FastScanner(); PrintWriter pw=new PrintWriter(System.out); int N=sc.nextInt(); char[] cs=sc.next().toCharArray(); int ans=N-1; int unchanged = 0; for (int i=0;i + 1<cs.length;++i) { if (cs[i] == 'B' && cs[i + 1] == 'B') ++unchanged; if (cs[i] == 'A' && cs[i + 1] == 'A') continue; } for (int i=0;i+2<cs.length;++i) { char a=cs[i]; char b=cs[i+1]; char c=cs[i+2]; if (a=='B'&&b=='A'&&c=='B') --ans; } ans -= Math.max(0, unchanged - 1); pw.println(ans); pw.close(); } void tr(Object...objects) {System.err.println(Arrays.deepToString(objects));} } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; }else{ ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;} private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;} public boolean hasNext() { skipUnprintable(); return hasNextByte();} public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while(isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while(true){ if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; }else if(b == -1 || !isPrintableChar(b)){ return minus ? -n : n; }else{ throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { return (int)nextLong(); } }