Answer Posted / sakthi sudhan

declaration : int a;
declaration means here a is declared as integer variable
initialization : int a = 5;
initialization is whatever you have declared give that
variable some value
definition : int a;
definition is whatever variable you have declared give it's
datatype as here a is declared as integer variable

Write a program to maintain student’s record. Record should not be available to any unauthorized user. There are three (3) categories of users. Each user has its own type. It depends upon user’s type that which kind of operations user can perform. Their types and options are mentioned below: 1. Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record) 2. Super Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record, Delete Single Record) 3. Guest (Search Record [by Reg. No or Name], View All Records) When first time program runs, it asks to create accounts. Each user type has only 1 account (which means that there can be maximum 3 accounts). In account creation, following options are required: Login Name: <6-10 alphabets long, should be unique> Password: <6-10 alphabets long, should not display characters when user type> Confirm Password: Account Type: Login Name, Password and Account Type should be stored in a separate file in encrypted form. (Encryption means that actual information should be changed and Decryption means that Encrypted information is changed back to the actual information) If any of the above mentioned requirement(s) does not meet then point out mistake and ask user to specify information again. When Program is launched with already created accounts, it will ask for user name and password to authenticate. On successful authentication, give options according to the user’s type.

1499

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what is a function method?give example?

1904

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why programs in c are running with out #include? some warnings are display in terminal but we execute the program we get answer why? eg: main() { printf("hello world "); }

1306

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Is register a keyword in c?

621

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2) Write a program that will help Air Traffic Control for an airport to view the sequence of flights ready for take-off. The airport can accommodate 10 flights waiting for take-off at any point in time. Each flight has a unique 3 digit numeric identifier.  Each time a flight takes-off, Air Traffic Control adds a flight to the waitlist. Each time a flight is added to the waitlist, the list of flights waiting to take-off must be displayed.  When a flight is cleared for take-off, Air Traffic Control removes the flight from the waitlist. Each time a flight takes-off, the list of flights waiting to take-off must be displayed.  Sequence of take-off is the sequence of addition to the waitlist

2506

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Explain can static variables be declared in a header file?

660

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What is variable declaration and definition in c?

487

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how can i access hard disk address(physical address)? are we access hard disk by using far,near or huge pointer? if yes then please explain.....

1360

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Explain what is a static function?

622

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What are comments and how do you insert it in a C program?

728

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What is double pointer?

546

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Why we use stdio h in c?

565

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Can we change the value of #define in c?

574

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What are the application of c?

634

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What is realloc in c?

571

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