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  1. Prepare
  2. Interview Preparation Kit
  3. Recursion and Backtracking
  4. Crossword Puzzle

Crossword Puzzle

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  1. Prepare
  2. Interview Preparation Kit
  3. Recursion and Backtracking
  4. Crossword Puzzle
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A Crossword grid is provided to you, along with a set of words (or names of places) which need to be filled into the grid. Cells are marked either + or -. Cells marked with a - are to be filled with the word list.

The following shows an example crossword from the input grid and the list of words to fit, :

Input 	   		Output

++++++++++ 		++++++++++
+------+++ 		+POLAND+++
+++-++++++ 		+++H++++++
+++-++++++ 		+++A++++++
+++-----++ 		+++SPAIN++
+++-++-+++ 		+++A++N+++
++++++-+++ 		++++++D+++
++++++-+++ 		++++++I+++
++++++-+++ 		++++++A+++
++++++++++ 		++++++++++
POLAND;LHASA;SPAIN;INDIA

Function Description

Complete the crosswordPuzzle function in the editor below. It should return an array of strings, each representing a row of the finished puzzle.

crosswordPuzzle has the following parameter(s):

  • crossword: an array of strings of length representing the empty grid
  • words: a string consisting of semicolon delimited strings to fit into

Input Format

Each of the first lines represents , each of which has characters, .

The last line contains a string consisting of semicolon delimited to fit.

Constraints



Output Format

Position the words appropriately in the grid, then return your array of strings for printing.

Sample Input 0

+-++++++++
+-++++++++
+-++++++++
+-----++++
+-+++-++++
+-+++-++++
+++++-++++
++------++
+++++-++++
+++++-++++
LONDON;DELHI;ICELAND;ANKARA

Sample Output 0

+L++++++++
+O++++++++
+N++++++++
+DELHI++++
+O+++C++++
+N+++E++++
+++++L++++
++ANKARA++
+++++N++++
+++++D++++

Sample Input 1

+-++++++++
+-++++++++
+-------++
+-++++++++
+-++++++++
+------+++
+-+++-++++
+++++-++++
+++++-++++
++++++++++
AGRA;NORWAY;ENGLAND;GWALIOR

Sample Output 1

+E++++++++
+N++++++++
+GWALIOR++
+L++++++++
+A++++++++
+NORWAY+++
+D+++G++++
+++++R++++
+++++A++++
++++++++++

Sample Input 2

++++++-+++
++------++
++++++-+++
++++++-+++
+++------+
++++++-+-+
++++++-+-+
++++++++-+
++++++++-+
++++++++-+
ICELAND;MEXICO;PANAMA;ALMATY

Sample Output 2

++++++I+++
++MEXICO++
++++++E+++
++++++L+++
+++PANAMA+
++++++N+L+
++++++D+M+
++++++++A+
++++++++T+
++++++++Y+