What is structured programming? Explain its advantages. 

Ans:
Structured Programming: means the collection of principles and practices that
are directed toward developing correct programs which are easy to maintain and
understand. A structured program is characterized by clarity and simplicity in its
logical flow.
The Three important constructs upon which structured programming is built
are:
• Sequence-Steps are performed one after the other.
• Selection-Logic is used to determine the execution of a sequence of steps. For
example,if-then-else construct.
• Iteration-A set of actions are repeated until a certain condition is met. For
example while construct.
The various advantages of structured programming are:
1. Complexity of program reduces.
2. Easy maintenance.
3. Simplified understanding.
4. Reusability of code increases.
5. Testing and debugging become easier.