> For the complete documentation index, see [llms.txt](https://maksimdan.gitbook.io/interview-practice-problems/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://maksimdan.gitbook.io/interview-practice-problems/leetcode_sessions/485-max-consecutive-ones.md).

# 485 Max Consecutive Ones

Given a binary array, find the maximum number of consecutive 1s in this array.

**Example 1:**

```
Input:
 [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.
```

**Note:**

* The input array will only contain 0 and 1.
* The length of input array is a positive integer and will not exceed 10,000

**The Idea:** Maintain the maxcount of 1s. Reset at 0.

**Complexity:** O(N) time and O(1) space

```python
class Solution:
    def findMaxConsecutiveOnes(self, nums):
        """
        :type nums: List[int]
        :rtype: int
        """

        cur_max = 0    
        maxx = 0
        for num in nums:
            if num:
                cur_max += num
                maxx = max(cur_max, maxx)
            else:
                cur_max = 0
        return maxx
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://maksimdan.gitbook.io/interview-practice-problems/leetcode_sessions/485-max-consecutive-ones.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.