[LeetCode] Image Overlap 图像重叠

发布时间：2020-12-14 04:25:41 所属栏目：大数据来源：网络整理

导读：? Two images? A ?and? B ?are given,represented as?binary,square matrices of the same size.? (A binary matrix has only 0s and 1s as values.) We translate one image however we choose (sliding it left,right,up,or down any number of units),and

Two images?A?and?B?are given,represented as?binary,square matrices of the same size.? (A binary matrix has only 0s and 1s as values.)

We translate one image however we choose (sliding it left,right,up,or down any number of units),and place it on top of the other image.? After,the?overlap?of this translation is the number of positions that have a 1 in both images.

(Note also that a translation does?not?include any kind of rotation.)

What is the largest possible overlap?

Example 1:

Input: A = [[1,1,0],[0,?           [0,0]]
?      B = [[0,1],1]]
Output: 3
Explanation: We slide A to right by 1 unit and down by 1 unit.

Notes:?

1 <= A.length = A[0].length = B.length = B[0].length <= 30
0 <=?A[i][j],B[i][j] <= 1

参考资料：

https://leetcode.com/problems/image-overlap/

（编辑：李大同）

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