Leetcode Problem 835. Image Overlap

835. Image Overlap

Leetcode Solutions

Approach: Shift and Count

  1. Define a function shift_and_count(x_shift, y_shift, M, R) that shifts matrix M relative to matrix R by (x_shift, y_shift) and counts the overlapping 1s.
  2. Iterate over all possible shift combinations (x_shift, y_shift) within the range [0, N-1].
  3. For each shift combination, invoke shift_and_count() twice, once with img1 as M and img2 as R, and once with img2 as M and img1 as R.
  4. Keep track of the maximum count of overlapping 1s.
  5. Return the maximum count after all shifts have been considered.
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Approach: Linear Transformation

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