Writing the Output for the Given Program

Oct 13, 2025 by wbrum.org 26 views

In this article, we will delve into the world of computer science and explore a simple program that demonstrates the concept of subscripts in Python. We will analyze the given program, understand its functionality, and write the output for the given input.

What are Subscripts?

Subscripts are a way to access elements in a sequence, such as a string or a list, using an index. In Python, subscripts are denoted by square brackets [] and are used to access specific elements in a sequence.

The Given Program

The given program is a simple Python script that takes a string input from the user and prints out the subscripts of each character in the string.

str1 = input("Enter a string: ")
index = 0
for i in str1:
    print("Subscript[", index, "] : ", i)
    index += 1

How the Program Works

Here's a step-by-step explanation of how the program works:

The program first prompts the user to enter a string using the input() function.
The input string is stored in the str1 variable.
The program initializes a variable index to 0, which will be used to keep track of the current subscript.
The program uses a for loop to iterate over each character i in the input string str1.
Inside the loop, the program prints out the subscript of the current character i using the print() function.
The subscript is printed in the format "Subscript[] : ".
After printing the subscript, the program increments the index variable by 1 using the += operator.
The loop continues until all characters in the input string have been processed.

Writing the Output for the Given Program

Let's assume the user enters the string "Hello". We will write the output for the given program using this input.

Input: "Hello" Output:

Subscript[ 0 ] : H
Subscript[ 1 ] : e
Subscript[ 2 ] : l
Subscript[ 3 ] : l
Subscript[ 4 ] : o

As you can see, the program prints out the subscripts of each character in the input string, starting from 0 and incrementing by 1 for each character.

Conclusion

In this article, we explored a simple Python program that demonstrates the concept of subscripts in Python. We analyzed the program, understood its functionality, and wrote the output for the given input. We hope this article has provided you with a clear understanding of subscripts in Python and how they can be used to access elements in a sequence.

Frequently Asked Questions

Q: What is the purpose of the `index` variable in the program?

A: The index variable is used to keep track of the current subscript of each character in the input string.

Q: Why is the `index` variable initialized to 0?

A: The index variable is initialized to 0 because the first subscript of a sequence is always 0.

Q: Can I use this program to access elements in a list?

A: Yes, you can use this program to access elements in a list by replacing the str1 variable with a list variable.

Q: How can I modify the program to print out the subscripts in reverse order?

In our previous article, we explored the concept of subscripts in Python and wrote a program to demonstrate their usage. In this article, we will answer some frequently asked questions about subscripts in Python.

Q: What is the difference between a subscript and an index?

A: A subscript and an index are often used interchangeably, but technically, a subscript is the value of the index. In other words, a subscript is the value that is used to access an element in a sequence, while an index is the position of the element in the sequence.

Q: Can I use a negative index to access an element in a sequence?

A: Yes, you can use a negative index to access an element in a sequence. In Python, negative indices are used to access elements from the end of the sequence. For example, if you have a string "Hello", you can access the last character using the index -1.

Q: How can I access a range of elements in a sequence using subscripts?

A: You can access a range of elements in a sequence using subscripts by using the range() function to generate the subscripts. For example, if you have a list [1, 2, 3, 4, 5] and you want to access the elements at indices 1, 2, and 3, you can use the following code:

my_list = [1, 2, 3, 4, 5]
for i in range(1, 4):
    print(my_list[i])

Q: Can I use subscripts to modify elements in a sequence?

A: Yes, you can use subscripts to modify elements in a sequence. In Python, you can assign a new value to an element in a sequence using the subscript. For example, if you have a list [1, 2, 3, 4, 5] and you want to change the value of the element at index 2 to 10, you can use the following code:

my_list = [1, 2, 3, 4, 5]
my_list[2] = 10
print(my_list)

Q: How can I delete an element from a sequence using subscripts?

A: You can delete an element from a sequence using subscripts by using the del statement. For example, if you have a list [1, 2, 3, 4, 5] and you want to delete the element at index 2, you can use the following code:

my_list = [1, 2, 3, 4, 5]
del my_list[2]
print(my_list)

Q: Can I use subscripts to insert an element into a sequence?

A: Yes, you can use subscripts to insert an element into a sequence. In Python, you can use the insert() method to insert an element at a specific index in a sequence. For example, if you have a list [1, 2, 3, 4, 5] and you want to insert the element 10 at index 2, you can use the following code:

my_list = [1, 2, 3, 4, 5]
my_list.insert(2, 10)
print(my_list)

Conclusion

In this article, we answered some frequently asked questions about subscripts in Python. We hope this article has provided you with a better understanding of subscripts and how they can be used to access and modify elements in sequences.

Frequently Asked Questions

Q: What is the difference between a subscript and an index?

A: A subscript and an index are often used interchangeably, but technically, a subscript is the value of the index.

Q: Can I use a negative index to access an element in a sequence?

A: Yes, you can use a negative index to access an element in a sequence.

Q: How can I access a range of elements in a sequence using subscripts?

A: You can access a range of elements in a sequence using subscripts by using the range() function to generate the subscripts.

Q: Can I use subscripts to modify elements in a sequence?

A: Yes, you can use subscripts to modify elements in a sequence.

Q: How can I delete an element from a sequence using subscripts?

A: You can delete an element from a sequence using subscripts by using the del statement.

Q: Can I use subscripts to insert an element into a sequence?

A: Yes, you can use subscripts to insert an element into a sequence.