search-a-2d-matrix-ii

Search a 2D Matrix II

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searchMatrix

Write an efficient algorithm that searches for a value <code>target</code> in an <code>m x n</code> integer matrix <code>matrix</code>. This matrix has the following properties:

<ul>
	<li>Integers in each row are sorted in ascending from left to right.</li>
	<li>Integers in each column are sorted in ascending from top to bottom.</li>
</ul>

&nbsp;
Example 1:
<img alt="" src="https://assets.leetcode.com/uploads/2020/11/24/searchgrid2.jpg" style="width: 300px; height: 300px;" />
<pre>
Input: matrix = [[1,4,7,11,15],[2,5,8,12,19],[3,6,9,16,22],[10,13,14,17,24],[18,21,23,26,30]], target = 5
Output: true
</pre>

Example 2:
<img alt="" src="https://assets.leetcode.com/uploads/2020/11/24/searchgrid.jpg" style="width: 300px; height: 300px;" />
<pre>
Input: matrix = [[1,4,7,11,15],[2,5,8,12,19],[3,6,9,16,22],[10,13,14,17,24],[18,21,23,26,30]], target = 20
Output: false
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>m == matrix.length</code></li>
	<li><code>n == matrix[i].length</code></li>
	<li><code>1 &lt;= n, m &lt;= 300</code></li>
	<li><code>-109 &lt;= matrix[i][j] &lt;= 109</code></li>
	<li>All the integers in each row are sorted in ascending order.</li>
	<li>All the integers in each column are sorted in ascending order.</li>
	<li><code>-109 &lt;= target &lt;= 109</code></li>
</ul>

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