Answer Posted / sandeep

When Ordinary variable's value changed after initialisation
it's memory will filled with the new value

Why does this code crash?

1097

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What's the best way of making my program efficient?

1110

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FORMATTED INPUT/OUTPUT functions are a) scanf() and printf() b) gets() and puts() c) getchar() and putchar() d) all the above

1118

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What is the heap?

1218

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What does != Mean in c?

1053

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Explain how can I prevent another program from modifying part of a file that I am modifying?

1091

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What is the difference between specifying a constant variable like with constant keyword and #define it? i.e what is the difference between CONSTANT FLOAT A=1.25 and #define A 1.25

1983

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Is c easy to learn?

984

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Why isnt any of this standardized in c?

1083

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What is the size of enum in c?

1119

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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.

1985

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What is structure and union in c?

1149

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How will you divide two numbers in a MACRO?

1137

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What is structure data type in c?

1022

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What are dangling pointers in c?

1230

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