Homework help? :-)

[spideyflygirl90]

Hey everyone. I'm taking Data Structures right now. Just got an assignment back that I thought I understood and I got an F....owch. So I was hoping maybe someone/or multiple someones would be willing/want to help me with my new assignment for this week? :-)

My new assignment that I'll be starting on tonight (when I'm not on a work computer) is:

1. Read in a file of vehicle type and registration cost.
2. Sort that into an array. 1 for Autos and 1 for Motorcycles,
3. Calculate the highest registration cost, the lowest, and the average for each array.
4. Array size of 500 - produce an error if more than 500 lines.
5. Output to screen number of vehicles registered, high, low and average for each array.

So I'm thinking that I need to use getline() so that it reads a line at a time. Then have a loop to read the next line. Test something like, if (char == '\n'). Would that work?

Then for the array, I should just be able to make one of size 499 (to store 500 vehicles) and then I'm not sure how but search it for the high and low.

Am I even in the right direction?? o_O

[ResidentBiscuit]

Just a word of advice, most of us are not going to read this massive wall of text you just posted.

Narrow it down to what you're actually having a problem with, then we'll be more than happy to help.

[spideyflygirl90]

Better? :-)

[LB]

Would you consider this assignment to be harder than the one you got an F on? If so, I'm a little worried for you.

Try your best at an attempt and post here when you get stuck ;)

[kevinkjt2000]

Then for the array, I should just be able to make one of size 499 (to store 500 vehicles) and then I'm not sure how but search it for the high and low.

Huh? If I had a basket that was sized to 4 apples, how could I expect it to hold 5?
Anyhow looping over an array is not difficult to find max, min, and average.
You could use a for loop to traverse a basic array.
More info on for loops (and other kinds of loops) here:
http://www.cplusplus.com/doc/tutorial/control/

I agree with L B, you should show us some attempt at writing the code yourself so we can help you with parts you get stuck on.

[spideyflygirl90]

Well this is only my second programming class so it's not like I'm well experienced in this subject. I came to this website because it said for beginners and I was looking for some help since I obviously didn't understand the last assignment.

I thought arrays stored 1 value in the 0 slot. Therefore to hold 500 values, it would need 499 slots (plus the 0 makes 500)....

[LB]

An array of size 1 holds one element at slot 0. An array of size 0 holds no elements, and it's not even allowed to dereference the pointer.

[spideyflygirl90]

Okay so it would be array size 500 but the 500th value would be at location arrray[499] right?

[LB]

Yes.