URL : https://www.hackerrank.com/challenges/designer-door-mat/problem
Mr. Vincent works in a door mat manufacturing company. One day, he designed a new door mat with the following specifications:
- Mat size must be N X M. (N is an odd natural number, and M is 3 times N.)
- The design should have ‘WELCOME’ written in the center.
The design pattern should only use , . and - characters.
- Sample Designs
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Size: 7 x 21 ---------.|.--------- ------.|..|..|.------ ---.|..|..|..|..|.--- -------WELCOME------- ---.|..|..|..|..|.--- ------.|..|..|.------ ---------.|.--------- Size: 11 x 33 ---------------.|.--------------- ------------.|..|..|.------------ ---------.|..|..|..|..|.--------- ------.|..|..|..|..|..|..|.------ ---.|..|..|..|..|..|..|..|..|.--- -------------WELCOME------------- ---.|..|..|..|..|..|..|..|..|.--- ------.|..|..|..|..|..|..|.------ ---------.|..|..|..|..|.--------- ------------.|..|..|.------------ ---------------.|.--------------- - Input Format
- A single line containing the space separated values of N and M.
- Constraints
- 5 < N < 101
- 15 < M < 303
- Output Format
- Output the design pattern.
문제풀이
- n과 m이 주어지면 해당 숫자에 맞는 패턴의 그림을 그리는것
- 어제 배운 str.center를 이용하여 그림
- 정중앙에는 WELCOME이라는 단어가 들어가므로, for문을 정중앙을 기점으로 데칼코마니처럼 그리게 만듬
- j라는 가중치를 두어 for문이 1번 돌때마다 +1 혹은 -1 씩 하게 만들어 패턴 모양의 횟수를 만들어냄
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n = 7
m = 21
k = n // 2
c = '.|.'
j = 0
for i in range(1, k + 1):
print((c * (i + j)).center(m, '-'))
j += 1
print('WELCOME'.center(m, '-'))
j -= 1
for i in range(k):
print((c * (k - i + j)).center(m, '-'))
j -= 1
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---------.|.---------
------.|..|..|.------
---.|..|..|..|..|.---
-------WELCOME-------
---.|..|..|..|..|.---
------.|..|..|.------
---------.|.---------