Implement Manual String Reversal Function

[labrocadabro]

Implement Manual String Reversal Function

Description

Task

Implement String Reversal Function

Acceptance Criteria

• Function should take a string input and return its reverse
• Should handle empty strings
• Should preserve spaces and special characters
• Should be implemented without using string[::-1] or reverse()

Summary of Work

Implementation of String Reversal Function

Changes Made

• Created src/string_reversal.py with a manual string reversal implementation
• Implemented reverse_string() function with the following key features:
  • Manual character reversal without using slicing or built-in reverse methods
  • Type checking for input validation
  • Efficient two-pointer approach for in-place reversal

Implementation Details

• Function uses a two-pointer technique to swap characters
• Converts input string to a list for manipulation
• Swaps characters from both ends towards the center
• Handles various input scenarios:
  • Basic string reversal
  • Empty strings
  • Single character strings
  • Strings with spaces and special characters

Acceptance Criteria

✅ Reverses string input manually
✅ Does not use string slicing ([::-1])
✅ Does not use built-in reverse() method
✅ Handles type checking and invalid inputs
✅ Passes comprehensive test suite

Testing Approach

• Implemented comprehensive test cases in tests/test_string_reversal.py
• Test coverage includes:
  • Basic string reversal
  • Edge cases (empty string, single character)
  • Strings with spaces and special characters
  • Invalid input type handling

Test Results

• All 6 test cases passed successfully
• 100% coverage of specified test scenarios

Time and Space Complexity

• Time Complexity: O(n)
• Space Complexity: O(n)

Notes

• Provides a robust and efficient string reversal solution
• Demonstrates manual string manipulation technique

Changes Made

• Implemented manual string reversal function in src/string_reversal.py
• Created comprehensive test suite in tests/test_string_reversal.py
• Added type checking and error handling
• Used two-pointer technique for in-place reversal

Tests

• Test basic string reversal
• Test empty string reversal
• Test single character reversal
• Test strings with spaces
• Test strings with special characters
• Test invalid input handling

Signatures

Staking Key

BiYiK5ioyqd6c2pPvvjaSzLAhR8MMvBordhBnh9CordT: mYm4HTJGgep8gdqMnZLEkTLAbc8DJ14NSBTEQtVgyhR6mHYm4cqoaLaigTEvzobH3WyBnbbsHo7QgfeQHYBC7Tzn7FywvbhmMQBo9iGAZXmUTDtzvK9M7P6eTQe9UCQCKQzNEWEYu3JtXH7xQhhDgMPuRAGd6KDXZJJ5cerpySyfwZo4jt6yF6c6Q3QdsfWvocmzxN2NV9YcxUEfq9ys3X97zTmvuT9GYWumfc8TcNJvoq2WjHFdxsG2jPbqd1yGsi3yP8suSFhD1NtwwgQkNxKGQLn7fdfg1Um98F7kBa6qHvyLbev1rpefL1CuaAZVm1jWG5RUd3fdKS1mk25dqr2FRgo7hSETFx5Ea3kzBR1GLcLm9NGsSNHnj1n

Public Key

7rnv8Gvvs8tbnnnddjozHRXqtmrMpW536PJRDxV4ua4t: CM1m9Dkr2Sy9fFgE1CKRFGjUh6CFH3r2toNTQ6WB12KpMUxH1GK5XGr4PoqCCnfUW4wEQrBKXGgknuQ5bpbXziL37N7pkAYQwEkjyqf9VM9ayy6B2YdeuzZdvSfKenkg8vV7xz6rJuLA6YKsiwWmsit3NJzSJSVgCobAhykQFY5BUdo6jKkuzUsV6muZ4VuTA6mDV78HWPU1Fwk78Rz1WWXt2sPsChwQzX5rL5MgzVu53Xc6Eg3Lx4AoWsGJkr3a7pLeTd1oA2sCe4snXDNGEUPWXb6QVDBFw7kKFgELyLtsNaYqa1ohqnwFCW4FF4iiWDfL6MpU5oahjK6Lq68biVHPPjwMqWTfyGeUmFZ6i75x2xro7q5cUurDHgH2

[laura-abro]

String Reversal Implementation

Description

Implementation of a function to manually reverse a string without using slicing or built-in reverse methods.

Recommendation

APPROVE

Reasons:

• Correct implementation of string reversal
• Comprehensive test coverage
• Proper error handling for invalid inputs
• Follows specified requirements

Unmet Requirements

All requirements met

Tests

Failed Tests

No failing tests

Missing Test Cases

No missing test cases identified

Action Items

No action items required

Signatures

Staking Key

AEghvdqmRtc3fjKXfNTMJJ6WshksgWuJ9YBExgsZu8cN: zHH3xs696BykGnDm2dx1gT9138tytPQeqEPteWzAjeLehPJdrZqLVhKNyQBUZd8JqV8EVsN9P5WGgreuWmzQERQePZKRbzj6iMcjRnjv8Y4VZuSi16drBb7Sp59ynSottVDPP3ni63V2c2626oNhL1aGspjPAxtg9dxwwthiwuUkKcrWVScJLQU9orenPyMtvw2kzRpGgfHmk3SiFA8HBazDbTFj8hfdS19yFaPmFDshaEEtRb2CAHK6gjTeHrK75jDTqUrRy3zPA3vUGtqFjDzuxmKnBMn1twdP8nCDMXhFgncThteLidiy8fJ3b4kdSEL9RGgsDgjptshh8QmQcvgvmsUQryiJ8oqcHokHb2n9N8r7442Dh3uy7gy8SKck1UNtc

Public Key

AwXAtX7tMhL4JyB8NfXdsrqc1UifaMyap3c9bpN9RMse: 2MsBa1a1q6hDW19bU4ekwTdQ3mKEHTBm3S49p3oByquHifYkoyB3CPz7kG3mtnFtuzkQ8nNwBP3x7GnqND7qnnnjpZim2NYshbHgWZ5UJX3Qp542rp9sFu9t2hqM6uKN8HQJekb727A1QLZopkozm7k5StnDTfVuseH1gsEnENWKhvcH3HgG4mR5btcvXjgDA4ioWCqt5FctauGiniXHeKcNMVCVKSJmUXjXwVu7DwViAJGSDChR2jxAJVyjMUio88VEpyPDQhqmpdTwmYbmSBYhzh69chscBgHSwyXEWsNH9NVMRDC4njZ84QHB1nfddZx31MzzfwJcc22trEAB4hS3a7aUZ6vmo7br7VW2U2mddSuFdp6wwBCuUt527ixzFHd6C