Question

Python: Write a recursive function that accepts an integer argument, n. The function should display n lines of asterisks on the screen, with the first line showing 1 asterisk, the second line showing 2 asterisks, up to the nth line which shows n asterisks. Test the function.

Answer 1

Code is as follows:

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#function to print the asterisks pattern
def pattern(n):
if n>1: #if n is greater than 1
pattern(n-1) #recursive call to n-1
print('*'*n) #print n asterisks
else:
print('*') #else print only one asterisks

#function for testing   
def main():
n = int(input("Enter n : ")) #input n
pattern(n) #call function pattern with parameter n

if __name__=="__main__":
main()

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Screenshot of the code:

Output: