74. Search a 2D Matrix
You are given an m x n integer matrix matrix with the following two properties:
- Each row is sorted in non-decreasing order.
- The first integer of each row is greater than the last integer of the previous row.
Given an integer target, return true if target is in matrix or false otherwise.
You must write a solution in O(log(m * n)) time complexity.
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.lengthn == matrix[i].length1 <= m, n <= 100-104 <= matrix[i][j], target <= 104
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1class Solution:
2 def searchMatrix(self, matrix: List[List[int]], target: int) -> bool:
3
Starter codePython 3Spaces: 4
Loading editor…
1class Solution:
2 def searchMatrix(self, matrix: List[List[int]], target: int) -> bool:
3
Starter codePython 3Spaces: 4
Examples
Input
[[1,3,5,7],[10,11,16,20],[23,30,34,60]] 3
Input
[[1,3,5,7],[10,11,16,20],[23,30,34,60]] 13
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