結果
問題 | No.252 "良問"(良問とは言っていない (2) |
ユーザー |
|
提出日時 | 2020-04-09 01:37:39 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 570 ms / 2,000 ms |
コード長 | 3,576 bytes |
コンパイル時間 | 3,770 ms |
コンパイル使用メモリ | 77,304 KB |
実行使用メモリ | 62,532 KB |
最終ジャッジ日時 | 2024-07-19 06:14:32 |
合計ジャッジ時間 | 7,693 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 |
---|---|
other | AC * 7 |
ソースコード
import java.io.IOException;import java.io.InputStream;import java.util.Arrays;import java.util.NoSuchElementException;public class Main {public static void main(String[] args) {new Main().run();}int good(int pos, char[] cs) {int INF=Integer.MAX_VALUE/3;int ret=0;if (pos+4>cs.length) return INF;char[] target= {'g','o','o','d'};for (int i=pos;i<pos+4;++i) if(target[i-pos]!=cs[i]) ++ret;return ret;}int problem(int pos, char[] cs) {int INF=Integer.MAX_VALUE/3;int ret=0;if (pos+7>cs.length) return INF;char[] target= {'p','r','o','b','l','e','m'};for (int i=pos;i<pos+7;++i) if(target[i-pos]!=cs[i]) ++ret;return ret;}void run() {FastScanner sc=new FastScanner();int T=sc.nextInt();for (int t=0;t<T;++t) {char[] cs=sc.next().toCharArray();int n=cs.length;int INF=Integer.MAX_VALUE/3;int ans=INF;int[] dp1=new int[n];int[] dp2=new int[n];int[] pre=new int[n];Arrays.fill(dp1, INF);Arrays.fill(dp2, INF);for (int i=0;i<n;++i) {dp1[i]=Math.min(i==0?INF:dp1[i-1],good(i,cs));}for (int i=n-1;i>=0;--i) {dp2[i]=Math.min(i+1==n?INF:dp2[i+1],problem(i,cs));}for (int i=0;i<n;++i) {pre[i]=(i==0?0:pre[i-1])+(problem(i, cs)==0?1:0);}for (int i=0;i+11<=n;++i) {ans=Math.min(ans, dp1[i]+dp2[i+4]+(i-7<0?0:pre[i-7]));}System.out.println(ans);}}void tr(Object...objects) {System.out.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;}public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; 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() {long nl = nextLong();if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();return (int) nl;}public double nextDouble() { return Double.parseDouble(next());}}