How can we write a Algorithm using switch case in C language?

Answer 1

You would write an algorithm using the switch statement in C in the same manner as one would write an algorithm using any other statement. The tools supported by a particular programming language, such as conditional expressions and iteration constructs, are normally used together to implement an algorithm.

However, one particular group of algorithms lends itself to the use of the switch statement as the primary construct in the algorithm's implementation, although all other language constructs will generally be used in the same implementation: state machines are a method of solving a certain group of problems through a series of states and conditional transitions from one state into another.

A simple state machine could, for example, use a switch clause as its primary construct, where each case clause represents one of the possible states. In each state, the condition is checked which might enable the transition to another state. When that condition evaluates to true, the transitional action is taken and the new state is assumed.

In its simplest form, a state machine is formed from an endless loop surrounding a switch statement.