Answer Posted / Monika Sirohi

"The "define" directive in C creates a macro by replacing the #define directive and its arguments with the replacement text whenever it appears in the source code. Macros can simplify complex expressions, reduce typing effort, and increase performance but should be used cautiously as they lack type checking."

PLS U SENS ME INTERVIEW O. MY EMAIL ADD, SOFIYA.SINGH@GMAIL.COM

2256

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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.

2071

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What is variable initialization and why is it important?

1388

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Write a C program that will accept a hexadecimal number as input and then display a menu that will permit any of the following operations to be carried out: Display the hexadecimal equivalent of the one's complement. (b) Carry out a masking operation and then display the hexadecimal equivalent of the result. (c) Carry out a bit shifting operation and then display the hexadecimal equivalent of the result. (d) Exit. If the masking operation is selected, prompt the user lor the type of operation (bitwise and, bitwise exclusive or, or bitwise or) and then a (hexadecimal) value for the mask. If the bit shifting operation is selected. prompt the user for the type of shift (left or right), and then the number of bits. Test the program with several different (hexadecimal) input values of your own choice.

5444

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what is ur strangth & weekness

2584

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What is the difference between union and anonymous union?

1395

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In C programming, how do you insert quote characters (‘ and “) into the output screen?

1609

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Is int a keyword in c?

1055

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write a program to find out prime number using sieve case?

2171

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swap 2 numbers without using third variable?

1203

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Explain the difference between null pointer and void pointer.

1156

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what is associativity explain what is the precidence for * and & , * and ++ how the folloing declaration work 1) *&p; 2) *p++;

2513

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hi send me sample aptitude papers of cts?

2248

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The % symbol has a special use in a printf statement. How would you place this character as part of the output on the screen?

1356

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How do you determine the length of a string value that was stored in a variable?

1197

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