Answer Posted / ashu_deepu

i will like to add 1 thing abt d variabes.

declaring a variable means
int deepu; //it is declaration

defining means assigning value to the variable.

eg: int deepu=2018; //it is definition

Are there any problems with performing mathematical operations on different variable types?

992

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What are the advantages of external class?

1005

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How do you define a function?

970

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Which of the following operators is incorrect and why? ( >=, <=, <>, ==)

1110

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What is an array in c?

1001

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What does c mean before a date?

1104

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Why is it important to memset a variable, immediately after allocating memory to it ?

2000

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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.

1931

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Write a c program to build a heap method using Pointer to function and pointer to structure ?

4622

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Write an efficient algo and C code to shuffle a pack of cards.. this one was a feedback process until we came up with one with no extra storage.

1016

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What are the advantages and disadvantages of a heap?

1147

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What is the difference between formatted&unformatted i/o functions?

1007

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Explain what is the difference between null and nul?

1082

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Why is c not oop?

928

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#include main() { int *p, *c, i; i = 5; p = (int*) (malloc(sizeof(i))); printf(" %d",*p); *p = 10; printf(" %d %d",i,*p); c = (int*) calloc(2); printf(" %d ",*c); }

1003

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