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Count Servers that Communicate

Medium

Topics
ArrayGraphMatrixCounting

You are given a grid of 0s and 1s where 1 marks a server. Two servers communicate if they lie in the same row or the same column. Return the number of servers that can communicate with at least one other server.

Example 1

Input:  grid = [[1,0],[0,1]]
Output: 0

Example 2

Input:  grid = [[1,0],[1,1]]
Output: 3

Constraints

  • 1 <= m, n <= 250
  • grid[i][j] is 0 or 1.
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