Question

What could be the shortest as well as easiest approach in solving the given pattern? (See the attachment)

Language: Python.

Explain your answer.​

Answer 1

$\underline{\underline{\maltese\:\:\textbf{\textsf{Question}}}}$

• What could be the shortest as well as easiest approach in solving the given pattern ? $\sf{(R}\mathfrak{efer\:\: in\:\: Attachment - 1)}$

$\underline{\underline{\maltese\:\:\textbf{\textsf{Conditions}}}}$

• Need Shortest and Easiest Approach in Solving the Given Pattern
• Language to be used : Python

$\underline{\underline{\maltese\:\:\textbf{\textsf{Algorithm}}}}$

$\tt{1.}$ Read input(n).  

$\tt{2.}$ find spaces using formula : 2*n-2

$\tt{3.}$ for i in range(0, n), do:  

•    print spaces and the string.
•    If i%2
•        then c = A
•        else c = B

$\tt{4.}$str=c+' '+str+' '+c

$\tt{5.}$ spaces-= 2

$\underline{\underline{\maltese\:\:\textbf{\textsf{Required Program}}}}$

n = int(input("Enter the number of rows:"))

spaces = 2 * n - 2

str = 'A'

for i in range(n):

• print(spaces*' '+str)
• c = 'A' if i % 2 else 'B'
• str = c+' '+str+' '+c
• spaces-= 2

print("[Program finished]")

$\underline{\underline{\maltese\:\:\textbf{\textsf{Out Put}}}}$

• For the Output of the above Program, $\sf{(R}\mathfrak{efer\:\: in\:\: Attachment - 2)}$      

Answer 2

n=int(input("Enter the number of rows: "))

x, y=65,1

for i in range(1,n+1):

for j in range(n-i):

print(" ",end="")

for k in range(2*i-1):

print("%c"%(x),end=" ")

x,y=x+y,-y

print()