Problem: Finding Unique Substrings

Github Code

Problem Statement: Given a string, find all unique substrings of a given length. This problem is interesting because it combines string manipulation with set operations to ensure uniqueness.

Example: Given the string "abcabc", and a length 3, the unique substrings of length 3 are "abc", "bca", and "cab".

Solution Using Sets:

1. Generate All Substrings of Given Length:
   • Use a sliding window approach to extract substrings of the specified length.
2. Store Substrings in a Set:
   • Use a set to store these substrings, automatically handling duplicates.
3. Output the Unique Substrings:
   • Convert the set to a list if needed and print or return the unique substrings.

C++ Code Example:

Here’s a C++ code snippet to solve the unique substrings problem using std::set: Code

Explanation:

1. Generating Substrings:
   • The for loop iterates through the string and extracts substrings of the specified length using substr().
2. Storing in Set:
   • Each substring is inserted into a std::set, which ensures that only unique substrings are stored.
3. Output:
   • The unique substrings are printed out.

Why This Problem Is Interesting:

• Uniqueness Handling: Using a set makes it easy to handle uniqueness without additional checks.
• Efficiency: The set operations (insertion and lookup) are generally efficient, making the solution suitable for moderate-sized strings.
• Applications: This problem is related to applications such as pattern recognition, DNA sequence analysis, and text processing.

This example demonstrates the practical utility of sets in solving problems that involve uniqueness and efficient membership checking. Let me know if you have any specific problems in mind or need further details!

Problem Statement: Given a string, find all unique substrings of a given length. This problem is interesting because it combines string manipulation with set operations to ensure uniqueness.

Example: Given the string "abcabc", and a length 3, the unique substrings of length 3 are "abc", "bca", and "cab".

Solution Using Sets:

1. Generate All Substrings of Given Length:
   • Use a sliding window approach to extract substrings of the specified length.
2. Store Substrings in a Set:
   • Use a set to store these substrings, automatically handling duplicates.
3. Output the Unique Substrings:
   • Convert the set to a list if needed and print or return the unique substrings.

Try:

1. Can you find the unique common substrings amoung two strings using intersection?