In cryptography, you could often break the algorithm if you know what was the original (plain) text that was encoded into the current ciphertext. This is called the plain text attack. In this simple problem, we illustrate the plain text attack on a simple substitution cipher encryption, where you know each letter has been substituted with a different letter from the alphabet but you don’t know what that letter is. You are given the cipherText as the input string to the function getwordSets(). You know that a plain text "AMMUNITION" occurs somewhere in this cipher text. Now, you have to find out which sets of characters corresponds to the encrypted form of the "AMMUNITION". You can assume that the encryption follows simple substitution only. [Hint: You could use the pattern in the "AMMUNITION" like MM occurring twice together to identify this]

1998

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

679

Given a valid 24 hour format time find the combination of the value and write a program ,do not hard the value and if any other inputs provided should work with the logic implemented Input: 11:30 Output: 13:10 Input: 18:25 Output: 21:58

1163

What oops means?

617

How is a pointer variable declared?

633

This is a variation of the call_me function in the previous question:call_me (myvar)int *myvar;{ *myvar += 5; }The correct way to call this function from main() will be a) call_me(myvar) b) call_me(*myvar) c) call_me(&myvar) d) expanded memory

774

Explain the use of #pragma exit?

742

Can two or more operators such as and be combined in a single line of program code?

850

What is the difference between memcpy and memmove?

638

What are structural members?

608

What do you mean by command line argument?

672

Does c have enums?

627

Why is c called a structured programming language?

729

Why functions are used in c?

635

What is an array? What the different types of arrays in c?

688