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数组相关 |
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[04. 二维数组中的查找](https://leetcode-cn.com/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof/) |
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```java |
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class Solution { |
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public boolean findNumberIn2DArray(int[][] matrix, int target) { |
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if (matrix == null || matrix.length == 0) { |
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return false; |
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} |
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int m = matrix.length, n = matrix[0].length; |
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int row = 0, col = n - 1; |
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while (row < m && col >= 0) { |
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if (matrix[row][col] > target) { |
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col--; |
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} else if (matrix[row][col] < target) { |
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row++; |
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} else { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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``` |
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