Answer Posted / bathakarai

The preprocessor <stdio.h> means that the directory is
predefined one.

but we specify "stdio.h" in their program that indicates
that the preprocessor is an userdefind one

What is printf () in c?

1143

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What is volatile variable how do you declare it?

1184

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Explain how do you sort filenames in a directory?

1075

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What is the difference between the local variable and global variable in c?

1013

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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.

2044

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How do you redirect a standard stream?

1150

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What is the use of bitwise operator?

1171

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What are the functions to open and close file in c language?

1260

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What is pointer in c?

1246

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Write a program to implement queue.

1167

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Write a C/C++ program to add a user to MySQL. The user should be permitted to only "INSERT" into the given database.

2018

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Can static variables be declared in a header file?

1098

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What is the right type to use for boolean values in c?

1085

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Explain how can I make sure that my program is the only one accessing a file?

1270

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Write a program in "C" to calculate the root of a quadratic equation ax^2+bx+c=0, where the value of a,b & c are known.

2281

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