Answer Posted / Joshil Murmu

"To obtain the current time in C, you can use the `time.h` library and the `time()` function. To calculate the difference between two times, subtract one time from another."

Sir,please help me out with the code of this question. Write an interactive C program that will encode or decode multiple lines of text. Store the encoded text within a data file, so that it can be retrieved and decoded at any time. The program should include the following features: (a) Enter text from the keyboard, encode the text and store the encoded text in a data file. (b) Retrieve the encoded text and display it in its encoded form. (c) Retrieve the encoded text, decode it and then display the decoded text. (d) End the computation. Test the program using several lines of text of your choice.

2403

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`write a program to display the recomended action depends on a color of trafic light using nested if statments

2218

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What is dynamic dispatch in c++?

1142

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What are compound statements?

1294

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What is the difference between union and anonymous union?

1403

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What is pointer to pointer in c with example?

1202

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Is int a keyword in c?

1062

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Do you know the difference between malloc() and calloc() function?

1139

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What are pointers? What are different types of pointers?

1268

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The % symbol has a special use in a printf statement. How would you place this character as part of the output on the screen?

1362

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List at least 10 sorting methods indicating their average case complexity, worst case complexity and best case complexity.

2832

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develop algorithms to add polynomials (i) in one variable

2261

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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.

2079

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can any one please explain, how can i access hard disk(physical address)? it is possible by the use of far,near or huge pointer? if yes then please explain......

2009

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Differentiate between null and void pointers.

1261

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