数据结构统计求大佬帮忙

Question

大佬，一组数里面是0,0,0,1,0,0,2,2,0,2,2,0,0,3,0,0,0,0 （0,2,2,0,2,2就算一个室早三联)如果022022是连续出现的话也只算一个比如022022022022这样也只算一个不连续的022022才++，统计022022的个数,求大佬帮忙

Answer 1

package com.lee.study;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Study20 {
    public static int getAmount(int[] numbers) {

        Pattern p = Pattern.compile("(?<!022022)022022(?!022022)");

        StringBuilder stringBuilder = new StringBuilder(numbers.length);

        for (int number : numbers) {
            stringBuilder.append(number);
        }

        Matcher m = p.matcher(stringBuilder.toString());

        int counter = 0;

        while (m.find()) {
            counter++;
        }

        return counter;
    }

    public static void main(String[] args) {
        int[] numbers = {0, 0, 0, 1, 0, 0, 2, 2, 0, 2, 2,0, 2, 2, 0, 2, 2, 0, 0, 3, 0, 0, 0, 0};
        System.out.println("应该输出1");
        System.out.println(getAmount(numbers));

    }
}

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