How to Solve Minimum Number of K Consecutive Bit Flips Problem
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Minimum Number of K Consecutive Bit Flips
You are given a binary array nums and an integer k. A k-bit flip is choosing a subarray of length k from nums and simultaneously changing every 0 in the subarray to 1, and every 1 in the subarray to 0...
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Understanding the Minimum Number of K Consecutive Bit Flips Problem
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Problem Statement
You are given a binary array nums and an integer k. A k-bit flip is choosing a subarray of length k from nums and simultaneously changing every 0 in the subarray to 1, and every 1 in the subarray to 0. Return the minimum number of k-bit flips required so that there is no 0 in the array. If it is not possible, return -1. A subarray is a contiguous part of an array.
Minimum Number of K Consecutive Bit Flips
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Examples
nums = [0,1,0], k = 12Flip nums[0], then flip nums[2].
nums = [1,1,0], k = 2-1No matter how we flip subarrays of size 2, we cannot make the array become [1,1,1].
nums = [0,0,0,1,0,1,1,0], k = 33Flip nums[0],nums[1],nums[2]: nums becomes [1,1,1,1,0,1,1,0] Flip nums[4],nums[5],nums[6]: nums becomes [1,1,1,1,1,0,0,0] Flip nums[5],nums[6],nums[7]: nums becomes [1,1,1,1,1,1,1,1]
Constraints
1 <= nums.length <= 1051 <= k <= nums.lengthHow Interview Coder Helps with Leetcode Problems
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