Package g2701_2800.s2750_ways_to_split_array_into_good_subarrays

Class Solution

java.lang.Object

g2701_2800.s2750_ways_to_split_array_into_good_subarrays.Solution

public class Solution
extends Object

2750 - Ways to Split Array Into Good Subarrays.

Medium

You are given a binary array nums.

A subarray of an array is good if it contains exactly one element with the value 1.

Return an integer denoting the number of ways to split the array nums into good subarrays. As the number may be too large, return it modulo 109 + 7.

A subarray is a contiguous non-empty sequence of elements within an array.

Example 1:

Input: nums = [0,1,0,0,1]

Output: 3

Explanation: There are 3 ways to split nums into good subarrays:

• [0,1] [0,0,1]
• [0,1,0] [0,1]
• [0,1,0,0] [1]

Example 2:

Input: nums = [0,1,0]

Output: 1

Explanation: There is 1 way to split nums into good subarrays: - [0,1,0]

Constraints:

• 1 <= nums.length <= 105
• 0 <= nums[i] <= 1

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	numberOfGoodSubarraySplits(int[] nums)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

numberOfGoodSubarraySplits

public int numberOfGoodSubarraySplits(int[] nums)