Search a 2D Matrix
Write an efficient algorithm that searches for a value target in an m x n integer matrix matrix.
Search a 2D Matrix

Write an efficient algorithm that searches for a value target in an m x n integer matrix matrix.

Example 1:
Input: {"matrix":[[1,3,5,7],[10,11,16,20],[23,30,34,60]],"target":3}
Output: true
Input
arr ={"matrix":[[1,3,5,7],[10,11,16,20],[23,30,34,60]],"target":3}
Target: 3

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10

11

16

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23

30

34

60

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