The decision control structure

In decision control structure the condition compared using relational operator like < <= > >= == != etc and prints required output.

if statement :
if (this condition is true)
execute this statement;

In the above syntax if is the key word followed by (relation condition check)
set of statements;

program:

                    main()

{

int num;

printf("Enter a number less than 10");

scanf("%d", & num);

if(num<10)

printf("What an obedient servant you are!");

}