Codeforces Round 713 (Div. 3) |
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Finished |
There is a square field of size $$$n \times n$$$ in which two cells are marked. These cells can be in the same row or column.
You are to mark two more cells so that they are the corners of a rectangle with sides parallel to the coordinate axes.
For example, if $$$n=4$$$ and a rectangular field looks like this (there are asterisks in the marked cells):
$$$$$$ \begin{matrix} . & . & * & . \\ . & . & . & . \\ * & . & . & . \\ . & . & . & . \\ \end{matrix} $$$$$$
Then you can mark two more cells as follows
$$$$$$ \begin{matrix} * & . & * & . \\ . & . & . & . \\ * & . & * & . \\ . & . & . & . \\ \end{matrix} $$$$$$
If there are several possible solutions, then print any of them.
The first line contains a single integer $$$t$$$ ($$$1 \le t \le 400$$$). Then $$$t$$$ test cases follow.
The first row of each test case contains a single integer $$$n$$$ ($$$2 \le n \le 400$$$) — the number of rows and columns in the table.
The following $$$n$$$ lines each contain $$$n$$$ characters '.' or '*' denoting empty and marked cells, respectively.
It is guaranteed that the sums of $$$n$$$ for all test cases do not exceed $$$400$$$.
It is guaranteed that there are exactly two asterisks on the field. They can be in the same row/column.
It is guaranteed that the solution exists.
For each test case, output $$$n$$$ rows of $$$n$$$ characters — a field with four asterisks marked corresponding to the statements. If there multiple correct answers, print any of them.
6 4 ..*. .... *... .... 2 *. .* 2 .* .* 3 *.* ... ... 5 ..... ..*.. ..... .*... ..... 4 .... .... *... *...
*.*. .... *.*. .... ** ** ** ** *.* *.* ... ..... .**.. ..... .**.. ..... .... .... **.. **..
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