Python | Print an Inverted Star Pattern
Here we are going to print inverted star pattern of desired sizes. Examples:
1) Below is the inverted star pattern of size n=5
(Because there are 5 horizontal lines
or rows consist of stars).
*****
****
***
**
*
2) Below is the inverted star pattern of size n=10
(Because there are 5 horizontal lines
or rows consist of stars).
**********
*********
********
*******
******
*****
****
***
**
*Let’s see Python program to print inverted star pattern:
Python3
# python 3 code to print inverted star# pattern# n is the number of rows in which# star is going to be printed.n=11# i is going to be enabled to# range between n-i t 0 with a# decrement of 1 with each iteration.# and in print function, for each iteration,# ” ” is multiplied with n-i and ‘*’ is# multiplied with i to create correct# space before of the stars.for i in range (n, 0, -1): print((n-i) * ' ' + i * '*') |
Explanation:
- The first number of rows is stored in variable n.
- Then the for loop enables i to range between n-i to 0 with a decrement of 1 with each iteration.
- After that, for each iteration, ” ” is multiplied with n-i and ‘*’ is multiplied with i to create correct space before of the stars.
- And finally desired pattern will be printed.
Output:
***********
**********
*********
********
*******
******
*****
****
***
**
*Time complexity: O(n) for given input n
Auxiliary Space: O(1)
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