Leetcode Problem 1703. Minimum Adjacent Swaps for K Consecutive Ones

1703. Minimum Adjacent Swaps for K Consecutive Ones

Leetcode Solutions

Prefix Sum and Sliding Window Approach

  1. Initialize an empty list positions to store the indices of 1s in the input array nums.
  2. Iterate through nums and for each 1 found, append its index to positions.
  3. Initialize a prefix sum array prefixSum with an additional leading 0 to simplify calculations.
  4. Populate prefixSum by adding the current element in positions to the cumulative sum.
  5. Initialize minMoves to infinity to track the minimum number of moves.
  6. Use a sliding window of size k to iterate over positions.
  7. For each window, calculate the total distance of 1s to the median index.
  8. Update minMoves with the minimum value between the current minMoves and the calculated distance for the current window.
  9. Return minMoves as the result.
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Brute Force with Optimization

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