Ethan is organizing a creative coding challenge for his friends. The challenge is to create a unique pattern using asterisks (*) based on a given input size n. Write a program to help Ethan by taking an integer n as input and generating the pattern given below.Input: 5Output:Input format :The input consists of an integer n.Output format :The output prints the required pattern.Code constraints :1 ≤ n ≤ 15Sample test cases :Input 1 :5Output 1 :* * * * * * * * * * * * * * * * * Input 2 :10Output 2 :* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Question
Ethan is organizing a creative coding challenge for his friends. The challenge is to create a unique pattern using asterisks () based on a given input size n. Write a program to help Ethan by taking an integer n as input and generating the pattern given below.Input: 5Output:Input format :The input consists of an integer n.Output format :The output prints the required pattern.Code constraints :1 ≤ n ≤ 15Sample test cases :Input 1 :5Output 1 : * * * * * * * * * * * * * * * * Input 2 :10Output 2 :* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Solution
Here is a Python program that will generate the pattern you described:
def print_pattern(n):
# Top part of the pattern
for i in range(n):
print(' ' * (n - i - 1) + '*' + ' ' * (2 * i - 1) + '*' * (i > 0))
# Bottom part of the pattern
for i in range(n - 1, -1, -1):
print(' ' * (n - i - 1) + '*' + ' ' * (2 * i - 1) + '*' * (i > 0))
# Test the function
print_pattern(5)
print_pattern(10)
This program works by using two loops to print the top and bottom parts of the pattern. The range function is used to generate the numbers from 0 to n-1 for the top part, and from n-1 to 0 for the bottom part. The print function is used to print each line of the pattern, with the * character and spaces in the appropriate places. The expression ' ' * (n - i - 1) is used to print the leading spaces, and the expression ' ' * (2 * i - 1) is used to print the spaces between the * characters. The expression '*' * (i > 0) is used to print the second * character, but only if i > 0 (because there is no second * character in the first line).
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