Solidity Fundamentals

Write a simple smart contract with state variables, a constructor, and functions.

Distinguish between value types (uint, bool, address) and reference types (arrays, structs, mappings).

Use visibility specifiers (public, private, internal, external) to control function and variable access.

Implement conditional logic and bounded loops, considering gas cost implications.

Use mappings and arrays for efficient data storage and retrieval.

Define and emit events to log contract activities on-chain.

Compile a contract with Hardhat and deploy it to a local network.