Python: Find a string which, when each character is shifted (ASCII incremented) by shift

Last update on May 30 2025 11:50:14 (UTC/GMT +8 hours)

ASCII Shift for String Transformation

Write a Python program to find a string which, when each character is shifted (ASCII incremented) by shift, gives the result.

ASCII table -

Input:
Ascii character table
Shift = 1
Output:
@rbhhbg`q`bsdqs`akd

Input:
Ascii character table
Shift = -1
Output:
Btdjj!dibsbdufs!ubcmf

Sample Solution-1:

Python Code:

# License: https://bit.ly/3oLErEI

def test(strs, shift):
    # Joining characters after shifting them by the specified amount
    return "".join(chr(ord(c) - shift) for c in strs)

# Example 1
strs1 = "Ascii character table"
print("Original string:")
print(strs1)
shift1 = 1
print('Shift =', shift1)
print("A new string which, when each character is shifted (ASCII incremented) by shift in the said string:")
print(test(strs1, shift1))

# Example 2
strs2 = "Ascii character table"
print("\nOriginal string:")
print(strs2)
shift2 = -1
print('Shift =', shift2)
print("A new string which, when each character is shifted (ASCII incremented) by shift in the said string:")
print(test(strs2, shift2))

Sample Output:

Original string:
Ascii character table
Shift = 1
A new string which, when each character is shifted (ASCII incremented) by shift in the said string:
@rbhhbg`q`bsdqs`akd

Original string:
Ascii character table
Shift = -1
A new string which, when each character is shifted (ASCII incremented) by shift in the said string:
Btdjj!dibsbdufs!ubcmf

Flowchart:

Sample Solution-2:

Python Code:

# License: https://bit.ly/3oLErEI

def test(strs, shift):
    # Using list comprehension to generate a list of characters after shifting
    shifted_chars = [chr(ord(strs[i]) - shift) for i in range(len(strs))]
    # Joining the characters to form the final shifted string
    return "".join(shifted_chars)

# Example 1
strs1 = "Ascii character table"
print("Original string:")
print(strs1)
shift1 = 1
print('Shift =', shift1)
print("A new string which, when each character is shifted (ASCII decremented) by shift in the said string:")
print(test(strs1, shift1))

# Example 2
strs2 = "Ascii character table"
print("\nOriginal string:")
print(strs2)
shift2 = -1
print('Shift =', shift2)
print("A new string which, when each character is shifted (ASCII decremented) by shift in the said string:")
print(test(strs2, shift2))

Sample Output:

Original string:
Ascii character table
Shift = 1
A new string which, when each character is shifted (ASCII incremented) by shift in the said string:
@rbhhbg`q`bsdqs`akd

Original string:
Ascii character table
Shift = -1
A new string which, when each character is shifted (ASCII incremented) by shift in the said string:
Btdjj!dibsbdufs!ubcmf

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to transform a string by shifting each character’s ASCII value by a given offset and output the resulting string.
• Write a Python program to implement an ASCII shift cipher that increments each character’s value by a specified amount.
• Write a Python program to modify a string by applying an ASCII shift to each character and handling wrap-around for alphabets.
• Write a Python program to create a function that shifts a string’s characters by a given integer and returns the transformed string.

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