LeetCode 1709: Biggest Window Between Visits Solution

Master LeetCode problem 1709 (Biggest Window Between Visits), a medium challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

1709. Biggest Window Between Visits

Medium

Database

Problem Explanation

Explanation

To solve this problem, we can iterate through the given array and keep track of the maximum distance between the same elements encountered so far. We can achieve this by using a HashMap to store the index of each element as we iterate through the array. When we encounter a repeated element, we calculate the distance between the current index and the previously stored index for that element and update the maximum distance if needed.

Start with an empty HashMap to store elements and their index.
Initialize a variable maxDistance to 0 to keep track of the maximum distance between same elements.
Iterate through the array.
- If the element is already present in the HashMap, calculate the distance between the current index and the previously stored index for that element.
- Update maxDistance if the calculated distance is greater.
- Update the index of the element in the HashMap.
Return the maxDistance as the result.

Time Complexity: O(n) where n is the number of elements in the array. Space Complexity: O(n) for the HashMap to store elements and their index.

Solution Code

class Solution {
    public int maxDistance(int[] nums) {
        Map<Integer, Integer> indexMap = new HashMap<>();
        int maxDistance = 0;
        
        for (int i = 0; i < nums.length; i++) {
            if (indexMap.containsKey(nums[i])) {
                maxDistance = Math.max(maxDistance, i - indexMap.get(nums[i]));
            }
            indexMap.put(nums[i], i);
        }
        
        return maxDistance;
    }
}

Try It Yourself

Loading code editor...

Frequently Asked Questions

How to solve LeetCode 1709 (Biggest Window Between Visits)?

This page provides optimized solutions for LeetCode problem 1709 (Biggest Window Between Visits) in Java, C++, and Python, along with a detailed explanation and an interactive code editor to test your code.

What is the time complexity of LeetCode 1709 (Biggest Window Between Visits)?

The time complexity for LeetCode 1709 (Biggest Window Between Visits) varies by solution. Check the detailed explanation section for specific complexities in Java, C++, and Python implementations.

Can I run code for LeetCode 1709 on DevExCode?

Yes, DevExCode provides an interactive code editor where you can write, test, and run your code for LeetCode 1709 in Java, C++, or Python.

Back to LeetCode Solutions