Alphabet Rangoli Python


Problem Statement :


You are given an integer, N. Your task is to print an alphabet rangoli of size N. (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 Nth alphabet letter (in alphabetical order).


Input Format:

Only one line of input containing N, the size of the rangoli.


Constraints:
0<N<27


Output Format:

Print the alphabet rangoli in the format explained above.


Solution :



title-img


                            Solution in C :

n=int(input())
for i in range(n-1,-1,-1):
    for j in range(i):
        print(end="--")
    for j in range(n-1,i,-1):
        print(chr(j+97),end="-")
    for j in range(i,n):
        if j != n-1:
            print(chr(j+97),end="-")
        else:
            print(chr(j+97),end="")
    for j in range(2*i):
        print(end="-")
    print()
for i in range(1,n):
    for j in range(i):
        print(end="--")
    for j in range(n-1,i,-1):
        print(chr(j+97),end="-")
    for j in range(i,n):
        if j != n-1:
            print(chr(j+97),end="-")
        else:
            print(chr(j+97),end="")
    for j in range(2*i):
        print(end="-")
    print()
                        




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