SPOJ.com - Problem CPTTRN1

CPTTRN1 - Character Patterns (Act 1)

#basics

Using two characters: . (dot) and * (asterisk) print a chessboard-like pattern. The first character printed should be * (asterisk).

Input

You are given t < 100 - the number of test cases and for each of the test cases two positive integers: l - the number of lines and c - the number of columns in the pattern (l, c < 100).

Output

For each of the test cases output the requested pattern (please have a look at the example). Use one line break in between successive patterns.

Example

Input:
3
3 1
4 4
2 5

Output:
*
.
*

*.*.
.*.*
*.*.
.*.*

*.*.*
.*.*.

Submit solution!

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	spsk_1313: 2018-08-26 09:00:24 Can any one give me the code in Python 3
	thesyncoder: 2018-06-10 07:52:28 easy enough , just do three nested loops , one outer loop for your array or vector , and the inner ones j and k for simple matrix like loops, and print * if j+k %2 ==0 else print .Happy coding.
	somyadeep99: 2018-06-01 11:54:46 i have got ac in one go, if you want solution send request mail at somyadeep99@gmail.com just think about odd even logic.
	vicc255: 2018-03-17 19:12:09 I thought the question was wrong but it's correct.See odd and even similarity between row no. and column no. Good luck.
	jairaj_sahgal: 2018-03-10 15:18:23 I love it
	secret_santa1: 2017-12-20 15:57:16 Approach-1)Draw a chessboard and enter the given values i.e. fill the chessboard with "." and ""(say 44 chessboard) 2)Observe the position of all the asterisk (or dots) and figure out the pattern. 3)Hint: Odd/even positions. Note-All given input & output are correct.
	vinay11vishu: 2017-11-13 20:08:34 @vshantam I am able to get the pattern correctly, but with my own input. Logic seems to be right but i am missing something with their inputs. Can you mail me your solution at karmavinayvkv@gmail.com.. Would be great help..
	vshantam: 2017-11-12 10:40:24 @vinay11vishu The idea i implemented was to run two for loops and when (i %2==0 and j%2==0) or (i%2!=0 and j%2!=0) then print '' or else print '.' where i and j depends on input on each line . works for me perfectly . Last edit: 2017-11-12 10:42:33*
	vinay11vishu: 2017-10-29 11:17:16 Can anybody explain me how the input should be given to this program ?? Last edit: 2017-10-29 12:35:27
	imtiaz_mehedi: 2017-08-30 19:35:31 i have done it..it shows the right output but here it said it's wrong Last edit: 2017-08-30 19:35:57

Submit solution!

Added by:	kuszi
Date:	2012-09-03
Time limit:	1s
Source limit:	50000B
Memory limit:	1536MB
Cluster:	Cube (Intel G860)
Languages:	All except: ASM64