1. The document discusses several C programming examples including calculating the area and perimeter of a rectangle, developing a simple calculator program using switch case, and solving a quadratic equation by finding roots.
2. It also provides an algorithm and program to calculate electricity bill charges based on different slabs for units consumed and includes minimum meter charges and surcharge if the amount exceeds a threshold.
3. The examples cover basic programming concepts like input/output, arithmetic operators, conditional statements, functions and provide hands-on practice with writing, compiling and running simple C programs.