<p>Given a binary array <code>nums</code> and an integer <code>k</code>, return <em>the maximum number of consecutive </em><code>1</code><em>'s in the array if you can flip at most</em> <code>k</code> <code>0</code>'s.</p> <p> </p> <p><strong>Example 1:</strong></p> <pre> <strong>Input:</strong> nums = [1,1,1,0,0,0,1,1,1,1,0], k = 2 <strong>Output:</strong> 6 <strong>Explanation:</strong> [1,1,1,0,0,<u><strong>1</strong>,1,1,1,1,<strong>1</strong></u>] Bolded numbers were flipped from 0 to 1. The longest subarray is underlined.</pre> <p><strong>Example 2:</strong></p> <pre> <strong>Input:</strong> nums = [0,0,1,1,0,0,1,1,1,0,1,1,0,0,0,1,1,1,1], k = 3 <strong>Output:</strong> 10 <strong>Explanation:</strong> [0,0,<u>1,1,<strong>1</strong>,<strong>1</strong>,1,1,1,<strong>1</strong>,1,1</u>,0,0,0,1,1,1,1] Bolded numbers were flipped from 0 to 1. The longest subarray is underlined. </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= nums.length <= 10<sup>5</sup></code></li> <li><code>nums[i]</code> is either <code>0</code> or <code>1</code>.</li> <li><code>0 <= k <= nums.length</code></li> </ul>