
Concept explainers
Why should you indent the statements in the body of a loop?

Explanation of Solution
Reason for statement indention:
Some of the reasons for “indenting C++ statements in the body of a loop” are:
- The body of a loop contains C++ statements and it gets executed once the expression is valid. Otherwise it won’t execute.
- Multiple loop statements are enclosed by braces ({}) and should be intended, because, it separates the condition statements from surrounding code.
- Hence, it helps the programmer to easily identify the statements that are conditionally-executed.
Example:
Consider the following example program contains conditionally-executed statements:
Program code:
//Include required header files
#include <iostream>
#include<iomanip>
using namespace std;
//Main function
int main()
{
//declare the variable “n” as integer set “n” as 5
int n = 5;
//loop i values for 5 times
for (int i = 1;i <= n;i++)
{
//check the number is even
if (i % 2 == 0)
{
//if so, display it
cout << "\n"<<i<<" is even";
}
}
cout << endl;
return 0;
}
The highlighted statements are indented within the loop.
2 is even
4 is even
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