Update P112. 搜索二维矩阵.md

jasoncao11 · jasoncao11 · commit 87d29d6b803a · 2022-08-31T17:25:05.000+08:00
diff --git a/P112. 搜索二维矩阵.md b/P112. 搜索二维矩阵.md
@@ -11,6 +11,7 @@ class Solution(object):
 
         row = len(matrix)-1
         col = 0
+        #从左下角或右上角开始搜索
         start = matrix[row][col]
 
         while (row>=0 and col < len(matrix[0])):
