What is loop and its types.daigram …

A Loop executes the sequence of statements many times until the stated condition becomes false. A loop consists of two parts, a body of a loop and a control statement. The control statement is a combination of some conditions that direct the body of the loop to execute until the specified condition becomes false. The purpose of the loop is to repeat the same code a number of times.

1. A while loop is the most straightforward looping structure. Syntax of while loop in C programming language is as follows:

   <pre> while (condition) { statements; }</pre>

2. A do...while loop in C is similar to the while loop except that the condition is always executed after the body of a loop. It is also called an exit-controlled loop.
   Syntax of do...while loop in C programming language is as follows:

   <pre> do { statements } while (expression);</pre>

3. A for loop is a more efficient loop structure in 'C' programming. The general structure of for loop syntax in C is as follows:

   <pre> for (initial value; condition; incrementation or decrementation ) { statements; }</pre>