Python Program to Print Ladder Pattern

Let us look at the code for how to Print a Ladder Pattern in Python. It is quite simple and interesting

Given a number N, the task is to print the ladder with N steps (frets) using ‘*’. The ladder will have a gap of 3 spaces between the two side rails.

Examples:

Example1:

Input:

Given N = 5

Output:

*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *

Example2:

Input:

Given N = 3

Output:

*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *

Program to Print Ladder Pattern in Python

• Using For loop (Static Input)
• Using For loop (User Input)

Method #1: Using For loop (Static Input)

Approach:

• Give the number of steps(frets) of a ladder as static input and store it in a variable.
• Loop till the given number of steps using the for loop
• Print “* *”
• Check if the iterator value is less than the given number of steps(gvn_N) using the if conditional statement
• If it is true, then print “*****” i.e, frets.
• The Exit of the Program.

Below is the implementation:

# Give the number of steps of a ladder as static input and store it in a variable.
gvn_N = 5
# Loop till the given number of steps using the for loop
for k in range(gvn_N+1):
    # Print "*   *" 
    print("*   *")   
    print("*   *")

    # Check if the iterator value is less than given number of steps(gvn_N) using the 
    # if conditional statement
    if k<gvn_N:
        # If it is true, then print "*****" i.e, frets
        print("*****")

Output:

*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *

Method #2: Using For loop (User Input)

Approach:

• Give the number of steps(frets) of a ladder as user input using the int(input()) function and store it in a variable.
• Loop till the given number of steps using the for loop
• Print “* *”
• Check if the iterator value is less than the given number of steps(gvn_N) using the if conditional statement
• If it is true, then print “*****” i.e, frets.
• The Exit of the Program.

Below is the implementation:

# Give the number of steps(frets) of a ladder as user input using the int(input()) function 
# and store it in a variable.
gvn_N = int(input("Enter some random number = "))
# Loop till the given number of steps using the for loop
for k in range(gvn_N+1):
    # Print "*   *" 
    print("*   *")   
    print("*   *")

    # Check if the iterator value is less than given number of steps(gvn_N) using the 
    # if conditional statement
    if k<gvn_N:
        # If it is true, then print "*****" i.e, frets
        print("*****")

Output:

Enter some random number = 3
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *
*****
*   *
*   *