結果

問題 No.252 "良問"(良問とは言っていない (2)
ユーザー uwiuwi
提出日時 2015-07-24 22:48:02
言語 Java21
(openjdk 21)
結果
AC  
実行時間 387 ms / 2,000 ms
コード長 3,611 bytes
コンパイル時間 3,486 ms
コンパイル使用メモリ 83,564 KB
実行使用メモリ 50,032 KB
最終ジャッジ日時 2024-07-08 13:24:45
合計ジャッジ時間 6,315 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge2
このコードへのチャレンジ
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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 384 ms
46,596 KB
testcase_01 AC 387 ms
46,236 KB
testcase_02 AC 348 ms
47,804 KB
testcase_03 AC 217 ms
49,992 KB
testcase_04 AC 226 ms
50,032 KB
testcase_05 AC 213 ms
50,004 KB
testcase_06 AC 49 ms
36,788 KB
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ソースコード

diff # 

package contest;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;

public class Q387 {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		char[] problem = "problem".toCharArray();
		char[] good = "good".toCharArray();
		for(int T = ni();T >= 1;T--){
			char[] s = ns().toCharArray();
			int n = s.length;
			int[] ngs = new int[n];
			Arrays.fill(ngs, 7);
			for(int i = n-7;i >= 0;i--){
				int ng = 0;
				for(int j = 0;j < 7;j++){
					if(s[i+j] != problem[j])ng++;
				}
				ngs[i] = Math.min(ngs[i+1], ng);
			}
			int[] ps = new int[n+1];
			for(int i = 0;i <= n-7;i++){
				int ng = 0;
				for(int j = 0;j < 7;j++){
					if(s[i+j] != problem[j])ng++;
				}
				ps[i+1] = ps[i];
				if(ng == 0){
					ps[i+1]++;
				}
			}
			
			int ret = 18;
			for(int i = n-11;i >= 0;i--){
				int ng = 0;
				for(int j = 0;j < 4;j++){
					if(s[i+j] != good[j])ng++;
				}
				ret = Math.min(ret, ng + ngs[i+4] + (i-7+1 < 0 ? 0 : ps[i-7+1]));
			}
			out.println(ret);
		}
	}
	
	void run() throws Exception
	{
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		long s = System.currentTimeMillis();
		solve();
		out.flush();
		if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
	}
	
	public static void main(String[] args) throws Exception { new Q387().run(); }
	
	private byte[] inbuf = new byte[1024];
	private int lenbuf = 0, ptrbuf = 0;
	
	private int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}
	
	private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
	private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
	
	private double nd() { return Double.parseDouble(ns()); }
	private char nc() { return (char)skip(); }
	
	private String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	
	private char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}
	
	private char[][] nm(int n, int m)
	{
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}
	
	private int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private int ni()
	{
		int num = 0, b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
}
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