# Lesson 2: Assignments & Exercises

## **Assignments and Practical Exercises**

### **Assignment 1**:

* Research and write a brief explanation of how gas costs are affected by data types and control structures in Solidity. Focus on why it's important to choose appropriate data types and control structures.

### **Exercise 1**:

* Create a Solidity contract that demonstrates the use of different data types. Include at least one example of each: `uint`, `int`, `bool`, `address`, and `bytes`.

### **Exercise 2**:

* Write a smart contract that includes:
  * A conditional statement (if/else).
  * A loop (your choice of for, while, or do while).
  * Comment on each section explaining what it does.