Reference no: EM133201528

Questions for C++ Programming

Description:

This assignment will require that you generate a list of suggested lottery numbers using random number generation techniques.  The project will involve passing complex parameters such as arrays, generating random numbers and proper programming techniques. This may be a time consuming project so you may want to get started early and write it a piece at a time. 

Programming Specifications:

1. The program will prompt the user for the following information:
2. The number of values to print out ranging from 3 to 7 (inclusive). Any values outside that range must be rejected and the user prompted to enter in correct values.
3. The range of random numbers to consider. This will be the number of possible values to be selected. This value will range from 1-45 to 1-70 inclusive. You need only prompt for the last number since all lottery values will start with 1.   Any values outside that range will be rejected and the user prompted to enter the correct values.
4. The number of tickets that you wish to generate from 1 to 100 inclusive. Any value outside the range will be rejected and the user prompted to enter the correct value.
5. Once a number is selected in cannot be selected again. You must have some method of avoiding duplicate numbers. 
6. You can assume that valid integers will be entered so you won't need to check for invalid characters or converting numbers.
7. Output
8. Echo the information that the user input.
9. Number of numbers ( number between 3 and 7 inclusive)
10. Range of Values ( 1 to the largest value)
11. Number of ticket guesses (number of tickets)
12. Odds of winning. To estimate the odds of winning you use a formula that uses the highest value and the number of numbers.  So, if you wanted 6 numbers with a maximum value of 55 you would calculate the odds at: N! / (K! * (N-K)!  where N is the highest number and K is the number of balls selected.   55*54*53*52*51*50/ (1*2*3*4*5*6) = 1 in 28,989,675
13. The numbers produced by your program, one group per line. See Example.

Design Considerations:

1. Provide an initial seed to your random number generator by pasting the current time to srand. . Be sure to include the <cstdlib> , <ctime>, and <iomanip> and <iostream> libraries. 
2. Each subsequent call to rand() will cause a new seed to be generated automatically.
3. The random number generator returns a large integer number which must have the modulo operator used to reduce the possible number of returned values for the range you wish. For instance, if you wanted the upper range of your numbers to be 56 you would use the following statements:

Randomnumber = rand() % 56 +1;

1. Each number within a ticket can be used only once. Think of the ping pong ball method used on lottery shows where once a ball is selected that number cannot be used again.
2. Your program must use functions that shows examples of passing parameters and returning values.  

General Requirements:

1. No global variables, other than constants and type definitions!
2. Use the const qualifier on member functions wherever it is appropriate.
3. Your main routine should just mainly handle the calling of functions and basic program structure.
4. You will need to use the <iostream> library for output and the <ctime> library for obtaining an initial seed and the <cstdlib> for random numbers. You may use the <iomanip> library for formatting your output if you wish.
5. When you write source code, it should be readable and well-documented.
6. You must have prototypes for all of your functions.