Question

Please answer the attached question

Answer 1

Required Answer:-

Question:

• Write a program to print the following pattern.

Solution:

Question 1:

Here is the program.

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

for i in range(n):

for j in range(i+1):

print("* ",end="")

print()

Explanation:

• We will ask the user to enter the number of rows. The first loop iterates n times(i = 0 to n). Inner loop iterates i+1 times. For example, when i=0, inner loop iterates 1 times and hence, one star is printed. After second iteration, two stars are printed and so on.

Sample I/O:

Enter the number of rows: 5

*

* *

* * *

* * * *

* * * * *

Question 2:

Here is the program.

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

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

for j in range(0,n-i):

print("",end=" ")

for j in range(0,i):

print("* ",end="")

print()

Explanation:

• Three loops are created. Outer loop iterates n times (number of rows). Inside the outer loop, two loops are created (for spaces and for stars). Each row has n - i number of spaces (n = number of rows and i = row number). After spaces are displayed, stars will be displayed.

Sample I/O:

Enter the number of rows: 5

*

* *

* * *

* * * *

* * * * *

Answer 2

A. for i in range(1, 6):

      print("*" * i)

B. for i in range(1, 6):

      print(" " * (5 - i), "*" * i)