Problem 52:Search 2D Matrix[Microsoft]
Make sure you study this well. This problem doesn't require esoteric algorithms but will still make you work
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Another week, another problem for you to solve
Make sure you really understand the solution to this upcoming problem. This problem is special because solving doesn’t really require much special knowledge. Just some logic and the teensiest bit of basic algebra. What makes this problem is not how hard the solution is, but that spotting what to do requires some insight. I love problems like this because they are great for testing your problem-solving skills.
This problem can be found as problem 74. Search a 2D Matrix on Leetcode.
Problem
Write an efficient algorithm that searches for a value target
in an m x n
integer matrix matrix
. This matrix has the following properties:
Integers in each row are sorted from left to right.
The first integer of each row is greater than the last integer of the previous row.
Example 1:
Input: matrix = [[1,3,5,7],[10,11,16,20],[23,30,34,60]], target = 3
Output: true
Example 2:
Input: matrix = [[1,3,5,7],[10,11,16,20],[23,30,34,60]], target = 13
Output: false
Constraints:
m == matrix.length
n == matrix[i].length
1 <= m, n <= 100
-104 <= matrix[i][j], target <= 104
You can test your solution here
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