Please refer to the article below to gain an understanding of the topic, Credits to my bro @Aakash Srivastava
https://leetcode.com/discuss/post/5865641/tackling-any-subarray-related-problems-i-9d3s/

Practice Problems:

1.Make sum divisible by P
https://leetcode.com/problems/make-sum-divisible-by-p/

2.Minimum Size Subarray Sum
https://leetcode.com/problems/minimum-size-subarray-sum/

3.Sum of Subarray Minimums
https://leetcode.com/problems/sum-of-subarray-minimums/

4.Subarray Sums divisible by K
https://leetcode.com/problems/subarray-sums-divisible-by-k/

5.Maximum Subarray
https://leetcode.com/problems/maximum-subarray/

6.Minimum Operations to reduce X to Zero
https://leetcode.com/problems/minimum-operations-to-reduce-x-to-zero/

7.Sum of all Odd length Subarrays
https://leetcode.com/problems/sum-of-all-odd-length-subarrays/

8.Count Number of Nice Subarrays
https://leetcode.com/problems/count-number-of-nice-subarrays/

9.Subarray sum Equals K
https://leetcode.com/problems/subarray-sum-equals-k/

10.Contiguous Array
https://leetcode.com/problems/contiguous-array/

11.Maximum Sum Of Two Non-Overlapping Subarrays
https://leetcode.com/problems/maximum-sum-of-two-non-overlapping-subarrays/

12.Number of Subarrays with Bounded Maximum
https://leetcode.com/problems/number-of-subarrays-with-bounded-maximum/

13.Subarray Product Less Than K to the list
https://leetcode.com/problems/subarray-product-less-than-k/description/