# DIY: Max Consecutive Ones III

Solve the interview question "Max Consecutive Ones III" in this lesson.

We'll cover the following

## Problem statement

Given a binary array, nums, and an integer, k, return the maximum number of consecutive 1s in the array if you can flip at most k 0s.

### Input

The input will be a binary array, nums, and an integer, k, which will represent the number of flips allowed, that is, 0 -> 1.

nums = [0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1]
k = 3


### Output

The output will be an integer value. The following is an example output for the input given above:

10


The maximum number of consecutive 1s is 10 for the input example given above.

### Coding exercise

Implement the longest_ones(nums, k) function, wherein nums is the binary array containing 0s and 1s and k is the number of flips allowed. The function will return an integer value, which will represent the maximum number of consecutive 1s.

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