Soduko-solver.java (#356)

Here's an solution to the opened issue

Author: Aman5989

Soduko-solver.java

@@ -0,0 +1,55 @@
+class Solution {
+public void solveSudoku(char[][] board)
+{
+solvsss(board);
+}
+public boolean solvsss(char[][] board)
+{
+for(int i=0;i<board.length;i++)
+{
+for(int j=0;j<board[i].length;j++)
+{
+if(board[i][j]=='.')
+{
+for(char c='1';c<='9';c++)
+{
+if(isValidSolv(board,i,j,c))
+{
+board[i][j]=c;
+if(solvsss(board)==true)
+{
+return true;
+}
+else
+{
+board[i][j]='.';
+}
+}
+}
+return false;
+}
+}
+ }
+         return true;
+        
+    }
+    public boolean isValidSolv(char[][] board,int row,int col,char c)
+    {
+        for(int i=0;i<9;i++)
+        {
+            if(board[row][i]==c)
+            {
+                return false;
+            }
+            else if(board[i][col]==c)
+            {
+                return false;
+            }
+            else if(board[3 * (row / 3) + i / 3][3 * (col / 3) + i % 3] == c)
+            {
+                return false;
+            }
+        }
+        return true;
+    }
+}