What is volatile, register definition in C

0 Answers   Cognizant,

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How can I increase the allowable number of simultaneously open files?

1 Answers   CSC,

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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: <must match with the Password, should not display characters when user type> Account Type: <One character long, A or S or G where A for Admin, S for Super Admin, G for Guest> 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.

0 Answers  

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What are unions in c?

0 Answers  

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void main() { int *ptr; ptr = (int *) 0x400 ; printf("ptr=%d",ptr); } output?

1 Answers  

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What is unary operator?

0 Answers  

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How do I declare an array of N pointers to functions returning pointers to functions returning pointers to characters?

2 Answers  

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is compiler do read the data line by line or not. ??

6 Answers   LG Soft, Satyam, Tech Mahindra,

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array contains zeros and ones as elements.we need to bring zeros one side and one other side in single parse. ex:a[]={0,0,1,0,1,1,0,0} o/p={0,0,0,0,0,1,1,1}

12 Answers   Google, Motorola,

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how to find out the reverse number of a digit if it is input through the keyboard?

6 Answers  

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the constant value in the case label is followed by a a) semicolon b) colon c) braces d) none of the above

0 Answers  

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There are 3 baskets of fruits with worng lables,one basket has apple,another basket has orange,another has combination of apple and orange,what is the least way of interchange the lables.

15 Answers   Cisco, Google, MBT,

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