LeetCode 3499: Maximize Active Section with Trade I Solution

Master LeetCode problem 3499 (Maximize Active Section with Trade I), 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.

3499. Maximize Active Section with Trade I

Medium

String Enumeration

Problem Explanation

Explanation:

To solve this problem, we can iterate through the input binary string s and count the number of active sections. We can simulate the process of performing a trade at each possible position and calculate the maximum number of active sections we can achieve.

Initialize a variable maxActiveSections to store the maximum number of active sections.
Iterate through the input string s and count the number of active sections.
For each index i in the string, simulate a trade by considering the contiguous block of '1's surrounded by '0's and the contiguous block of '0's surrounded by '1's.
Calculate the maximum number of active sections that can be achieved by performing a trade at position i.
Update maxActiveSections with the maximum value obtained.
Return maxActiveSections as the result.

Time Complexity: O(n) where n is the length of the input string s. Space Complexity: O(1)

Solution Code

class Solution {
    public int maximizeActiveSections(String s) {
        int n = s.length();
        int maxActiveSections = 0;
        int activeSections = 0;

        // Count initial active sections
        for (int i = 0; i < n; i++) {
            if (s.charAt(i) == '1') {
                activeSections++;
            }
        }
        
        // Simulate trade at each position
        for (int i = 0; i < n; i++) {
            if (s.charAt(i) == '1') {
                activeSections--;
            } else {
                activeSections++;
            }
            maxActiveSections = Math.max(maxActiveSections, activeSections);
        }

        return maxActiveSections;
    }
}

Try It Yourself

Loading code editor...

Frequently Asked Questions

How to solve LeetCode 3499 (Maximize Active Section with Trade I)?

This page provides optimized solutions for LeetCode problem 3499 (Maximize Active Section with Trade I) 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 3499 (Maximize Active Section with Trade I)?

The time complexity for LeetCode 3499 (Maximize Active Section with Trade I) varies by solution. Check the detailed explanation section for specific complexities in Java, C++, and Python implementations.

Can I run code for LeetCode 3499 on DevExCode?

Yes, DevExCode provides an interactive code editor where you can write, test, and run your code for LeetCode 3499 in Java, C++, or Python.

Back to LeetCode Solutions