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Python is a widely-used, interpreted, object-oriented, and high-level programming language with dynamic semantics, used for general-purpose programming. It was created by Guido van Rossum, and first released on February 20, 1991.
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Link for the Problem – Alphabet Rangoli in Python – HackerRank Solution
Alphabet Rangoli in Python – HackerRank Solution
You are given an integer, . Your task is to print an alphabet rangoli of size . (Rangoli is a form of Indian folk art based on creation of patterns.)
Different sizes of alphabet rangoli are shown below:
#size 3 ----c---- --c-b-c-- c-b-a-b-c --c-b-c-- ----c---- #size 5 --------e-------- ------e-d-e------ ----e-d-c-d-e---- --e-d-c-b-c-d-e-- e-d-c-b-a-b-c-d-e --e-d-c-b-c-d-e-- ----e-d-c-d-e---- ------e-d-e------ --------e-------- #size 10 ------------------j------------------ ----------------j-i-j---------------- --------------j-i-h-i-j-------------- ------------j-i-h-g-h-i-j------------ ----------j-i-h-g-f-g-h-i-j---------- --------j-i-h-g-f-e-f-g-h-i-j-------- ------j-i-h-g-f-e-d-e-f-g-h-i-j------ ----j-i-h-g-f-e-d-c-d-e-f-g-h-i-j---- --j-i-h-g-f-e-d-c-b-c-d-e-f-g-h-i-j-- j-i-h-g-f-e-d-c-b-a-b-c-d-e-f-g-h-i-j --j-i-h-g-f-e-d-c-b-c-d-e-f-g-h-i-j-- ----j-i-h-g-f-e-d-c-d-e-f-g-h-i-j---- ------j-i-h-g-f-e-d-e-f-g-h-i-j------ --------j-i-h-g-f-e-f-g-h-i-j-------- ----------j-i-h-g-f-g-h-i-j---------- ------------j-i-h-g-h-i-j------------ --------------j-i-h-i-j-------------- ----------------j-i-j---------------- ------------------j------------------
The center of the rangoli has the first alphabet letter a, and the boundary has the alphabet letter (in alphabetical order).
Function Description
Complete the rangoli function in the editor below.
rangoli has the following parameters:
- int size: the size of the rangoli
Returns
- string: a single string made up of each of the lines of the rangoli separated by a newline character (\n)
Input Format
Only one line of input containing , the size of the rangoli.
Constraints
Sample Input
5
Sample Output
--------e-------- ------e-d-e------ ----e-d-c-d-e---- --e-d-c-b-c-d-e-- e-d-c-b-a-b-c-d-e --e-d-c-b-c-d-e-- ----e-d-c-d-e---- ------e-d-e------ --------e--------
Alphabet Rangoli in Python – HackerRank Solution
def print_rangoli(size):
import string
alpha = string.ascii_lowercase
L = []
for i in range(n):
s = "-".join(alpha[i:n])
L.append((s[::-1]+s[1:]).center(4*n-3, "-"))
print('\n'.join(L[:0:-1]+L))
if __name__ == '__main__':
n = int(input())
print_rangoli(n)
