Code C, conversions done algorithimically

nv to Hex ConvertDec_to_Hex-Oct-Bin.c is a simple conversion program that prompts the user for an integer from 1 to 1,000,000, and displays this integer value in hexadecimal, octal, and binary representation. The user is then asked if the output should be saved to a text file. If user replies in the affirmative, a name for the text file is requested. If the requested text file cannot be created, user is re-prompted for a different file name. The text file will contain user's name, current date, and output results (see example below). User Interface: Enter an Integer (1- 1000000) or type x to exit: 240 Decimal: 240 Hexadecimal: FO Octal: 360 Binary: 11110000 Save to a file? (y): y Enter file name: cs222hw3.txt File saved. Enter an Integer (1- 1000000) or type x to exit: x Good bye! User defined functions: As a minimum, include the following 2 user-defined functions: (prototypes may vary as long as the function works properly) char 'getDateAndTimeO Returns a character string with the current date and time int getinteger(char str array) Read user input into character string. "returns-1 to exit program. Otherwise, convert the string into an integer(which will be returned to main)using int atoi(const char *str) or int sscanf (const chars, const char *format,...)