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pawan, Business Law and Ethics

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Decode the Code
Problem Description
Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are sending their messages in a number format. This format represents the way that numbers and characters are padded on mobile’s keypad. One smuggler sends a text message to the second smuggler, using the numbers corresponding to the letters on the keypad. When the receiving smuggler gets the message, he simply opens the “create text message” function in his mobile and types the number string. This way the receiver finally reads the original message. For Example: - 6999066263304447777077766622337778 -----> message sent by the first smuggler. my name is robert---------> message decoded by the second smuggler. Where ‘0’ denotes the "space".

Explanation: By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the mobile shows ‘m’ on display screen in write text message area. By pressing ‘999’ (i.e. key ‘9’ three times) on the keypad, the mobile shows ‘y’ on display screen in write text message area. By pressing ‘0’ (i.e. key ’0’ one time) on the keypad, the mobile shows ‘space’ on display screen in write text message area. By pressing ‘66’ (i.e. key’6’ two times) on the keypad, the mobile shows ‘n’ on display screen in write text message area. By pressing ‘2’ (i.e. key ’2’ one time) on the keypad, the mobile shows ‘a’ on display screen in write text message area. By pressing ‘6’ (i.e. key ''6''one time) on the keypad, the mobile shows ‘m’ on display screen in write text message area. By pressing ‘33’ (i.e. key ‘3’ two times) on the keypad, the mobile shows ‘e’ on display screen in write text message area. By pressing ‘0’ (i.e. key ‘0’ one time) on the keypad, the mobile shows ‘space’ on display screen in write text message area. By pressing ‘444’ (i.e. key’4’ three times) on the keypad, the mobile shows ‘i’ on display screen in write text message area. By pressing ‘7777’ (i.e. key ’7’ four times) on the keypad, the mobile shows ‘s’ on display screen in write text message area. By pressing ‘0’ (i.e. key ‘0’ one time) on the keypad, the mobile shows ‘space’ on display screen in write text message area. By pressing ‘777’ (i.e. key ’7’ three times) on the keypad, the mobile shows ‘r’ on display screen in write text message area. By pressing ‘666’ (i.e. key ’6’ three times) on the keypad, the mobile shows ‘o’ on display screen in write text message area. By pressing ‘22’ (i.e. key ‘2’ two times) on the keypad, the mobile shows ‘b’ on display screen in write text message area. By pressing ‘33’ (i.e. key ‘3’ two times) on the keypad, the mobile shows ‘e’ on display screen in write text message area. By pressing ‘777’ (i.e. key ’7’ three times) on the keypad, the mobile shows ‘r’ on display screen in write text message area. By pressing ''8'' (i.e. key ’8’ one time) on the keypad, the mobile shows ‘t’ on display screen in write text message area.
But for word monkey 6#666#665533999 this string will be sent by the smuggler one Here ‘# ‘ denotes that if smuggler watches ‘#’ then it means character previous to # is on the same key to the character after the ‘#’ and smuggler has to wait for 2 seconds and then press the same key.
Explanation: By pressing ‘6’ i.e. key’6’ one time on the keypad, the mobile shows ‘m’ on display screen. For ''#'' wait for 2 seconds, and then press next. By pressing ‘666’ i.e. key’6’ three times on the keypad, the mobile shows ‘o’ on display screen. For ‘#’ wait for 2 seconds, and then press next. By pressing ‘66’ i.e. key’6’ two times on the keypad, the mobile shows ‘n’ on display screen. By pressing ‘55’ i.e. key’5’ two times on the keypad, the mobile shows ‘k’ on display screen. By pressing ‘33’ i.e. key’3’ two times on the keypad, the mobile shows ‘e’ on display screen. By pressing ‘999’ i.e. key’9’ three times on the keypad, the mobile shows ‘y’ on display screen.
*Here lower case doesn’t matter. *Assuming that the smuggler one will not send any numeral characters in the original message. For example smuggler will not send any message like "I need 1000 bucks" as it contains numerals. So policemen need your help to track the smugglers. You have to write a program that decodes the sending smuggler’s string (from the number format into plain text).
Instructions to work with Open PBT Client:
Specify the work directory path in the ''Work directory Path'' field. The path should correspond to your solution Work directory.
Download the support files by clicking the Get Dev Files.
You will find the problem directories containing:
problem.h file
problem.c file
in your project directory.
Code the solution in .c file inside the problem directory
All required files will be downloaded to your work directory. Creating additional files is strongly discouraged.
Step 1:
In your Solution File:
Implement your logic in function char* decodeCode(char* encodedString)
char*   encodedString : is string which is sent by the smuggler1.
You can create more functions if required, but those functions should be in the same file.

Step 2:
In your solution keep in mind the following constraints.
In this problem you have to write a program that decodes the string, which is sent by the first smuggler.
The function decodeCode() takes the string encodedString as an argument. That string is what the first smuggler sends to the second smuggler.
The function decodeCode() returns a string, which is the decoded string in plain text.
If encodedString is empty then returns empty string.
encodedString should only contain integers, and the special character ''#'' (if needed).
encodedString should not have any alphabetic character (e.x. ''a'',''b'') else return empty string
encodedString should not have any special character except ''#'' else return empty string
The Prototype of the function is
char* decodeCode(char* encodedString) This function takes following argument.
char*    encodedString:  which represents the string which is send by the smuggler1.
function decodeCode() will return a string which is the decoded string of that string which is send by the smuggler1.
The constraints are:
encodedString should only contain integers, and the special character ''#'' (if needed).
encodedString should not contain any alphabetical characters (e.x. ''a'', ''b''); otherwise return empty string
encodedString should not contain any special characters, except ''#''; otherwise return empty string
encodedString is empty then returns empty string.

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