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Implement Manual String Reversal Function with Comprehensive Testing

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

String Reversal Function Implementation

Changes Made

  • Implemented a manual string reversal function in src/string_reversal.py
  • Created comprehensive test suite in tests/test_string_reversal.py

Implementation Details

  • Used a two-pointer approach to reverse the string manually
  • Avoided using built-in methods like [::-1] or reverse()
  • Implemented robust type checking and error handling

Acceptance Criteria

✅ Takes a string input and returns its reverse
✅ Handles empty strings correctly
✅ Preserves spaces and special characters
✅ Implemented without using slice notation or built-in reverse methods
✅ Includes comprehensive error handling

Technical Implementation

  • Algorithm: Two-pointer swap technique
  • Time Complexity: O(n)
  • Space Complexity: O(n)
  • Converts string to list for in-place character swapping

Testing Approach

  • Created 7 test cases covering:
    1. Basic string reversal
    2. Empty string handling
    3. Single character strings
    4. Strings with spaces
    5. Strings with special characters
    6. Mixed character strings
    7. Invalid input type handling

Test Results

  • All 7 tests passed successfully
  • Verified correct behavior across various input scenarios

Notes

  • Provides a robust, manual implementation of string reversal
  • Handles edge cases and type checking
  • Maintains string integrity during reversal

Changes Made

  • Implemented manual string reversal function in src/string_reversal.py
  • Added comprehensive type checking
  • Created two-pointer swap algorithm
  • Updated test suite with multiple test scenarios
  • Handled edge cases like empty and single-character strings

Tests

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

Signatures

Staking Key

BiYiK5ioyqd6c2pPvvjaSzLAhR8MMvBordhBnh9CordT: mYm4HTJGgep8gdqMnZLEkTLAbc8DJ14NSBTEQtVgyhR6mHYm4cqoaLaigTEvzobH3WyBnbbsHo7QgfeQHYBC7Tzn7FywvbhmMQBo9iGAZXmUTDtzvK9M7P6eTQe9UCQCKQzNEWEYu3JtXH7xQhhDgMPuRAGd6KDXZJJ5cerpySyfwZo4jt6yF6c6Q3QdsfWvocmzxN2NV9YcxUEfq9ys3X97zTmvuT9GYWumfc8TcNJvoq2WjHFdxsG2jPbqd1yGsi3yP8suSFhD1NtwwgQkNxKGQLn7fdfg1Um98F7kBa6qHvyLbev1rpefL1CuaAZVm1jWG5RUd3fdKS1mk25dqr2FRgo7hSETFx5Ea3kzBR1GLcLm9NGsSNHnj1n

Public Key

7rnv8Gvvs8tbnnnddjozHRXqtmrMpW536PJRDxV4ua4t: CM1m9Dkr2Sy9fFgE1CKRFGjUh6CFH3r2toNTQ6WB12KpMUxH1GK5XGr4PoqCCnfUW4wEQrBKXGgknuQ5bpbXziL37N7pkAYQwEkjyqf9VM9ayy6B2YdeuzZdvSfKenkg8vV7xz6rJuLA6YKsiwWmsit3NJzSJSVgCobAhykQFY5BUdo6jKkuzUsV6muZ4VuTA6mDV78HWPU1Fwk78Rz1WWXt2sPsChwQzX5rL5MgzVu53Xc6Eg3Lx4AoWsGJkr3a7pLeTd1oA2sCe4snXDNGEUPWXb6QVDBFw7kKFgELyLtsNaYqa1ohqnwFCW4FF4iiWDfL6MpU5oahjK6Lq68biVHPPjwMqWTfyGeUmFZ6i75x2xro7q5cUurDHgH2

@laura-abro
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String Reversal Implementation

Description

Implementation of a string reversal function with comprehensive test cases

Recommendation

APPROVE

Reasons:

  • Implementation meets all specified requirements
  • All tests pass successfully
  • Comprehensive test coverage
  • Proper error handling and input validation
  • Follows clean code principles

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: 2hxicgAqHU8VqU4nQScmzW42Lqfv3AqfQ3bXX2AcjuyeP5C2LisM8aeCf91BH9p3WqcKsVJ1nhwwRkoaaYgEXDSwepRWYyJ3c7H9JSJ4RqXEerL8s8vU9XgwKTj7w1o6m5zFATwPCuRNLSXVvS5tYVbSzUd6Ky5YdtgbL5hBEjsPcfLL18YWaK1MWKuPQE8gYVAXUzooQayZk4JXhTxgnfduViGKKKpcdwdkRcioXLZcacnP3hJv37VkNuXZs69nPA3FsycUTqJyej7nJJGJUcGHnBaBbp8TcjDinewmB95ndGv1dozXboeHi9gWcfP15dvqABjKrzWporhbkghHFzu1Scy4Cb5PwYSZ9KhEycfKXXrDLMkHzDnEhpfjqSBb1NB6nx

Public Key

AwXAtX7tMhL4JyB8NfXdsrqc1UifaMyap3c9bpN9RMse: 2zUNR6QrCPPt2LuLg8aYRQUTruqE5kDWfPsuNFArRY48dmeCpnv4KKZ1fvWp59svfQtmBCcbYVUg1bdmojT1zMwjRAa5gdQKxVVkJKLqrHro8f9P25PC6RwqNqKVSeV3CVrvJEPutUuWm3phqHV17ZcPLrJWMXSArxN5mtRzGqhARVL4wR5ffqNUs8KFN2Ayxe1oCkmTqVUD5by6x96mCe1paCcQGByrmYgN6gS3uzCK9kpZcWmp1YLuH55X7rxUkngHECK9jE1hpopMUiqwKdsHvPATFbw1W3QQZuFE4q8DKmCP2utWqGeZJCegqx2PwQx7A1sKTk4wDJ2ptwrbJCnaEDDK6EWAUmkD7Fag81TcUee1J1vVfg9dtsZgQWQ4DPkGCC

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