Introduction

In this blog post, we will explore how to solve the LeetCode problem "485" using AI. LeetCode is a popular platform for preparing for coding interviews, and with the help of AI tools like Chatmagic, we can generate solutions quickly and efficiently - helping you pass the interviews and get the job offer without having to study for months.

Problem Statement

Given a binary array nums, return the maximum number of consecutive 1's in the array. Example 1: Input: nums = [1,1,0,1,1,1] Output: 3 Explanation: The first two digits or the last three digits are consecutive 1s. The maximum number of consecutive 1s is 3. Example 2: Input: nums = [1,0,1,1,0,1] Output: 2 Constraints: 1 <= nums.length <= 105 nums[i] is either 0 or 1.

Explanation

Here's the breakdown of the approach and the Python code:

• High-Level Approach:

  • Iterate through the nums array.
  • Maintain a current_count to track consecutive 1s in the current sequence.
  • Update max_count whenever a longer sequence of 1s is found.

• Complexity:

  • Runtime: O(n) - single pass through the array. Storage: O(1) - constant extra space.

Code

    def findMaxConsecutiveOnes(nums):
    """
    Given a binary array nums, return the maximum number of consecutive 1's in the array.
    """
    max_count = 0
    current_count = 0
    for num in nums:
        if num == 1:
            current_count += 1
            max_count = max(max_count, current_count)
        else:
            current_count = 0
    return max_count