Answer Posted / vadivel t

Hi Vignesh,

All the answers u hav posted is correct except declaration
of a variable.

Cos, in C++ we can declare a variable anywhere in a
function.

But in C it is poosible to declare only at the starting of
the function.

What is a void pointer? When is a void pointer used?

1052

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Can you please explain the difference between strcpy() and memcpy() function?

1053

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What is the explanation for cyclic nature of data types in c?

1192

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Why is %d used in c?

995

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What is merge sort in c?

1036

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If null and 0 are equivalent as null pointer constants, which should I use?

1194

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Differentiate between a structure and a union.

1274

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Can include files be nested? How many levels deep can include files be nested?

1140

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What is modifier & how many types of modifiers available in c?

1014

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Can we assign string to char pointer?

1082

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Explain continue keyword in c

1000

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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.

1967

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What is the best style for code layout in c?

1086

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What is dynamic dispatch in c++?

1041

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What is c programing language?

1071

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