Aim:
To write a C# program to perform encryption and decryption of the given data.

Algorithm
ALGORITHM FOR ENCRYPTION:
Step 1: Declare the class as encrypt_class.
Step 2: Start the main function.
Step 3: Declare the variable str in string data type.
Step 4: Create the object for inbuild encryption
algorithm TripleDESCryptoServiceProvider.
Step 5: Create the data file using Filestream
class.
Step 6: Create the object for class cryptoStream.
Cryptostream is a class to invoke the
Encryotor algorithm ....etc

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Associated with the California's the most helpful outdoor nature walks, Fossil fuel vegetable oils goal walk can be found near Goleta, Los angeles. Trails' computer live on the internet topo road directions proposal in the shade and as well not-No ....etc

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program for to find wether a no is krishnamurthy or not

....etc

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Algorithm:-
begin
if a,e,I,o,u or A,E,I,O,U
then
printf It is a vowel
else
printf It is a consonant
end

1. LEX program to count number of vowels and consonants in a given input string

%%
{printf( it is vowel );}
{printf( it is consonant );}
%%
main()
{
yylex();
}
int yywrap()
{
return 1;
}

Output:

$./a.out
a
it is a vowel
g
it is a consonant ....etc

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Prime number program in c: c program for prime number, this code prints prime numbers using c programming language. To check whether a number is prime or not see another code below. Prime number logic: a number is prime if it is divisible only by one and itself. Remember two is the only even and also the smallest prime number. First few prime numbers are 2, 3, 5, 7, 11, 13, 17..etc. Prime numbers have many applications in computer science and mathematics. A number greater than one can be factorized into prime numbers, For example 540 = 22*33*51 ....etc

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import java.io.*;
class Factorial
{
int fact(int n)
{
if(n<=1)
return 1;
else
return (n*fact(n-1));
}
}
class Newfact
{
public static void main(String args)throws IOException
{
DataInputStream dis=new DataInputStream(System.in);
System.out.println(Enter the number);
int i=Integer.parseInt(dis.readLine());
Factorial f=new Factorial();
System.out.println(Factorial is+f.fact(i));
}
}



OUTPUT

E:\ 5BCA-B\lijo\java >javac Newfact.java
Note: Newfact.java uses or overrides a deprecated ....etc

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to get information about the topic lex program to recognise and count number of identifiers in a given file related topic refer the page link bellow

http://seminarsprojects.net/Thread-program-in-%E2%80%9Clex%E2%80%9D-to-count-number-of-identifiers-and-keywords ....etc

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lex code for prime number

Lex is a computer program that generates lexical analyzers (scanners or lexers).Lex is commonly used with the yacc parser generator. Lex, originally written by Mike Lesk and Eric Schmidt and described in 1975,is the standard lexical analyzer generator on many Unix systems, and an equivalent tool is specified as part of the POSIX standard.Lex reads an input stream specifying the lexical analyzer and outputs source code implementing the lexer in the C programming language. ....etc

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I consider, that you commit an error. I can defend the position. ....etc

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could you please send me the lex program to specify decimal numbers
....etc

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