LeetCode Pattern: 19 Tips & Strategies for Solving Sliding Window Problems (Including 10 Classic Problems & Solutions)

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Sliding window problems in LeetCode often involve efficiently processing or finding solutions for subarrays or substrings of a given array or string. The sliding window technique is particularly useful in scenarios where you need to maintain a window of elements as you traverse through the array or string. Here are some tips and strategies for solving sliding window problems for LeetCode.

I. TIPS & STRATEGIES FOR SOLVING SLIDING WINDOW PROBLEMS:

1. Understand the Problem:

• Clearly understand the problem statement and the requirements. Identify the size and characteristics of the sliding window.
• Sliding window problems involve maintaining a set of elements within a fixed-size window while moving through a larger collection of elements.

1.1. Indicators of Sliding Window Problems:

i. Subarray or Substring Problems:

• Look for problems where you need to find the maximum or minimum sum, product, or length of a subarray or substring.