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Crossword Puzzle

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2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

1. You are given a 10*10 2-D array(arr) containing only '+' and '-' characters, which represents a 
    crossword puzzle. 
2. You are also given n number of words which need to be filled into the crossword.
3. Cells containing '-' are to be filled with the given words.

Note -> Check out the question video and write the recursive code as it is intended without 
               changing signature. The judge can't force you but intends you to teach a concept.
Input Format 
10 * 10 grid of characters containing only '+' and '-' 
A number n
str1
str2
...n strings
Output Format 
Check the sample output and question video
Question Video
Constraints 
1 <= n <= 10
Sample Input 
+-++++++++
+-++++++++
+-++++++++
+-----++++
+-+++-++++
+-+++-++++
+++++-++++
++------++
+++++-++++
+++++-++++
4
LONDON
DELHI 
ICELAND 
ANKARA
Sample Output 
+L++++++++
+O++++++++
+N++++++++
+DELHI++++
+O+++C++++
+N+++E++++
+++++L++++
++ANKARA++
+++++N++++
+++++D++++


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