Hackerrank_Python_Domain_Solutions/Strings/AlphabetRangoli.py at master · PKan06/Hackerrank_Python_Domain_Solutions · GitHub

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'''
Title     : Alphabet Rangoli
Subdomain : Strings
Domain    : Python
Author    : Ahmedur Rahman Shovon
Created   : 15 July 2016
Problem   : https://www.hackerrank.com/challenges/alphabet-rangoli/problem
'''
n = int(input().strip())
w = (n-1) * 2 + ((n * 2) - 1)
#upper half
for i in range(1,n,1):
    number_of_letter = (i*2) - 1
    s = ''
    letter_value = 97 + n - 1
    for i in range(0,number_of_letter):
        if(i != 0):
            s += '-'
        s += chr(letter_value)
        if(i<(number_of_letter-1) / 2):
            letter_value = letter_value - 1
        else:
            letter_value = letter_value + 1
    print(s.center(w,'-'))


#bottom half
for i in range(n,0,-1):
    number_of_letter = (i*2) - 1
    s = ''
    letter_value = 97 + n - 1
    for i in range(0,number_of_letter):
        if(i != 0):
            s += '-'
        s += chr(letter_value)
        if(i<(number_of_letter-1) / 2):
            letter_value = letter_value - 1
        else:
            letter_value = letter_value + 1
    print(s.center(w,'-'))