C Program To Print World Map

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Briesemeister projection world map, printable in A4 size, PDF vector format is available as well. The Briesemeister Projection is a modified version of the Hammer projection, where the central meridian is set to 10°E, and the pole is rotated by 45°. The map is also stretched to get a 7:4 width/height ratio instead of the 2:1 of the Hammer.

  1. This program demonstrates the basics of programming for Microsoft Windows, simply creating a new window and displaying the text 'Hello, world!' Compare this with the standard C 'Hello, world!' Program to see how much more code we need for a basic Windows application. Programming Issues. A Win32 program has two important functions.
  2. Create and publish interactive maps Use maps for analysis and presentations. Unlimited markers per map. 3-level access control for each map: Viewer, Member and Admin; Input from: Location(Search), Crowd Source, Google Spreadsheets, Microsoft Excel, CSV, KML, GeoRSS feed or Copy-and Paste. Create a Map Map my Spreadsheet.
  3. C Program to print Hello World multiple times using loop. For loops are used to repeat a sequence of statements multiple times till a condition is satisfied( here condition is 'counter 10').We initialize counter variable with 0 and increment it after every iteration till it's value is less than 10.

In this example, you will learn about C program to encrypt and decrypt the string using two algorithms i.e. Caesar Cypher and RSA.

Encryption/Decryption using Caesar Cypher Algorithm
Encryption/Decryption using RSA Algorithm

Example: C program to encrypt and decrypt the string using Caesar Cypher Algorithm.

For encryption and decryption, we have used 3 as a key value.

While encrypting the given string, 3 is added to the ASCII value of the characters. Similarly, for decrypting the string, 3 is subtracted from the ASCII value of the characters to print an original string.

Let’s take a look at the program.

Output

#Encryption

#Decryption

Explanation

In the above program, we have used simple logic for encrypting and decrypting a given string by simply adding and subtracting the particular key from ASCII value.

Example: C program to encrypt and decrypt the string using RSA algorithm.

RSA is another method for encrypting and decrypting the message. It involves public key and private key, where the public key is known to all and is used to encrypt the message whereas private key is only used to decrypt the encrypted message.

It has mainly 3 steps:

1: Creating Keys

  • Select two large prime numbers x and y
  • Compute n = x * y
    where n is the modulus of private and the public key
  • Calculate totient function, ø (n) = (x − 1)(y − 1)
  • Choose an integer e such that e is coprime to ø(n) and 1 < e < ø(n).
    e is the public key exponent used for encryption
  • Now choose d, so that d · e mod ø (n) = 1, i.e., >code>d is the multiplicative inverse of e in mod ø (n)

2: Encrypting Message

Messages are encrypted using the Public key generated and is known to all.

The public key is the function of both e and n i.e. {e,n}.

If M is the message(plain text), then ciphertext

3: Decrypting Message

C Program To Print World Map Without

The private key is the function of both d and n i.e {d,n}.

C Program To Print World Map Worksheet

If C is the encrypted ciphertext, then the plain decrypted text M is

Here is an implementation of RSA in C program.

C Program To Print World Map Online

World

C Program To Print World Map Pdf

Output