Tact Smart Battle Contest

This repository contains a series of smart contract implementations for a voting system on the TON blockchain. Each implementation represents a different level of complexity and functionality, building upon the previous versions.

Contest Structure

The contest consists of 5 levels, each focusing on different aspects of smart contract development:

Level 1: Simple Voting Contract

Folder: SimpleVoting/

• Basic single-proposal voting system
• Limited to 100 votes
• Time-limited voting period
• One vote per address
• Simple fund management

Level 2: Master Contract for Multiple Proposals

Folder: ScalableVoting/

• Master contract for deploying multiple proposals
• Sequential proposal IDs
• Time-limited voting periods
• One vote per address per proposal
• Basic fund management

Level 3: Scalable Single-proposal Voting

Folder: ScalableVoting/

• Support for up to 4 billion votes
• Storage limit of 100,000 bits
• Time-limited voting period
• One vote per address
• Efficient storage optimization

Level 4: Master Contract with Refunds

Folder: SerialVotingWithRefund/

• Master contract with fund management
• Automatic refunds for excess funds
• Minimum balance maintenance (0.01 TON)
• Sequential proposal IDs
• Careful fund handling

Level 5: Scalable Voting with Refunds and Gas Management

Folder: ScalableVotingWithRefund/

• Support for 4 billion votes
• Storage limit of 100,000 bits
• Automatic refunds
• Gas management and transaction recovery
• Minimum vote value requirement (0.1 TON)

Key Features Across Levels

1. Voting Mechanics

   • Yes/No voting options
   • Time-limited voting periods
   • Unique voter identification
   • Immutable votes

2. Security Features

   • Duplicate vote prevention
   • Time validation
   • Address verification
   • Error handling

3. Technical Requirements

   • Gas efficiency
   • Storage optimization
   • Fund management
   • Error handling

Implementation Details

Each level's implementation includes:

• Smart contract code
• Detailed documentation
• Error handling
• State management
• Security measures

Getting Started

1. Choose the level you want to explore
2. Navigate to the corresponding folder
3. Read the level-specific README.md
4. Review the implementation details
5. Test the contract functionality

Best Practices

1. Security

   • Validate all inputs
   • Handle errors properly
   • Protect against attacks
   • Monitor contract state

2. Performance

   • Optimize gas usage
   • Efficient storage
   • Smart fund management
   • Proper error handling

3. Maintenance

   • Clear documentation
   • Code organization
   • Error tracking
   • State management

Testing

Each level includes:

• Contract deployment instructions
• Voting process details
• Result checking methods
• Error handling examples

Contributing

Feel free to:

• Review the implementations
• Suggest improvements
• Report issues
• Share your solutions

License

[Add your license information here]