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  1. n = int(input())
  2. if n<=1:
  3.     print("You cannot generate the tree")
  4. elif n>20:
  5.     print("Treee is no more")
  6. else:
  7.     n1 = n+1
  8.     a = n-1
  9.     b = n-2
  10.     for i in range(n1):
  11.         print( ' '*(n1-i-1) + '*'*(2*i+1))
  12.     for j in range(a):
  13.         print (' '*(a-j)+'*'*(2*j+3))
  14.     for k in range(b):
  15.         print (' '*(b-k+1)+'*'*(2*k+3))
  16.     for l in range(2):
  17.         print (' '*(b+2)+'*')
  18.  
Success #stdin #stdout 0.02s 9936KB
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    *
   ***
  *****
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*********
   ***
  *****
 *******
   ***
  *****
    *
    *
https://ideone.com/WmTpLX
language:
Python 3 (python  3.9.5)
created:
7 years ago
visibility:
public

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