Unhelpful Professor, help me complete this code?

[2bqGy60M]

Part 1:

Write a program that uses a while loop to read in test scores until the user enters a negative number.
Print the average score after dropping the highest and lowest scores.
Print an error message if the user enters less than 3 scores.


Part 2:

Do the same calculation using a for loop, but in this case first ask the user how many scores they
want to enter, then get the scores in a for loop.

You can assume the test scores are from 0 to 100.



Algorithm:

After the loop completes, you need to have 4 pieces of information:

1. How many scores: count
2. The sum of all the scores: sum
3. The highest score: hi
4. The lowest score: lo

The answer is then: (sum - hi - lo)/(count - 2)



The hi and lo values can be computed in the loop with the following algorithm:

for each score:
if score < lo
lo = score
else
if score > hi
hi = score

Remember you need to initialize count, sum, hi, and lo before the loop begins.

#include <iostream>
using namespace std;

int main() 
{
	int count, sum, lo, hi, num;
	
	int temp=count;
	if(count<3) cout<<"error"<<endl;
	cin>>num;
	lo=num;
	hi=num;
	count--;
	
	while ((num > 0)&&(count--))
	{
	    cin>>num;
	    if(num<lo)lo=num;
	    if(num>hi)hi=num;
	    
	}
	
	(sum-hi-lo)/(temp-2);
	
	
	return 0;
}

[SamuelAdams]

Dupe post

http://www.cplusplus.com/forum/beginner/198911/

[49iURXSz]

Which of the requirements do you want to start on? Break them down into statements that you understand.

For example:

Write a program that uses a while loop to read in test scores until the user enters a negative number.

This is an easy test condition for a while loop. How do we find out if a number is negative in C++?

This is an expression: value < 0

A program written in C++ will evaluate the expression inside the while loop's parenthesis first.
while( expression )

We can use that to our advantage.