IsContinuous.java

package com.company;

import org.junit.Test;

import java.util.Arrays;

public class IsContinuous {


    public boolean isContinuous(int[] numbers) {
        if (numbers == null || numbers.length != 5) {
            return false;
        }
        // 对元素进行排序
        Arrays.sort(numbers);
        int numberOfZero = 0;
        int numberOfGap = 0;
        for (int i = 0; i < numbers.length && numbers[i] == 0; i++) {
            numberOfZero++;
        }


        // 第一个非0元素的位置
        int small = numberOfZero;
        int big = small + 1;

        while (big < numbers.length) {
            if (numbers[small] == numbers[big]) {
                return false;
            }

            numberOfGap += (numbers[big] - numbers[small] - 1);
            small = big;
            big++;
        }

        return numberOfGap <= numberOfZero;
    }

    @Test
    public void test() {
        System.out.println(isContinuous(new int[]{1, 0, 0, 5, 0}));
    }
}