Update 37. Sudoku Solver.md

Author: TBXark

37. Sudoku Solver.md

@@ -32,6 +32,7 @@ A sudoku puzzle...
 
 class Solution {
     static let num: [Character] = ["1", "2", "3", "4", "5", "6", "7", "8", "9"]
+
     func solveSudoku(_ board: inout [[Character]]) {
         var clo = [Set<Character>].init(repeating: Set<Character>(), count: 9)
         var row = [Set<Character>].init(repeating: Set<Character>(), count: 9)
@@ -49,9 +50,9 @@ class Solution {
         }
         _ = fillGrid(index: 0, board: &board, clo: &clo, row: &row, block: &block)
     }
-
-
-        func fillGrid(index: Int,
+    
+    
+    func fillGrid(index: Int,
                   board: inout [[Character]],
                   clo: inout [Set<Character>],
                   row: inout [Set<Character>],
@@ -89,8 +90,10 @@ class Solution {
         }
         return false
     }
+    
 }
 
+
 ```
 
 
@@ -176,7 +179,7 @@ class Solution {
 [".",".",".","4","1","9",".",".","5"],
 [".",".",".",".","8",".",".","7","9"]]
 
-扫描遍历尝试填充4208次，按权重遍历调用fillGrid 340次
+扫描遍历调用fillGrid 4208次，按权重遍历调用fillGrid 340次
 
 ```