How to place input value in arrays c++? - c++

Question

New to c++. I want to take the input values in scoreCurrent and place them into different arrays depending on whether they're above the average or below the average. I tried looking for solutions from different websites and youtube but none worked so far. How do I do this?
I apologize if my whole code is a mess and thank you in advance.
#include <iostream>
using namespace std;
int main()
{
// student count
int students, upperLimit;
cout<<"Enter no. of students: ";
cin>>students;
// upper limit
do
{
cout<<"Enter the upper limit: ";
cin>>upperLimit;
if(upperLimit<5)
{
cout<<"Invalid upper limit."<<endl;
continue;
}
break;
}while(true);
// student scores
int scoreCurrent, scoreTotal;
float average=0;
int belowAve(students), aboveAve(students);
for(int index=1; index<=students; index++)
{
cout<<"Enter score for student no. "<<index<<": ";
cin>>scoreCurrent; // take this and place it into an array
// condition invalid
if(scoreCurrent>upperLimit || scoreCurrent<0)
{
int current=index-1;
cout<<"Invalid score."<<endl;
index=current;
scoreCurrent=0;
}
scoreTotal+=scoreCurrent;
average=(float) scoreTotal/(float) students;
if(scoreCurrent>average)
{
// scoreCurrent values are placed in belowAve array;
}
if(scoreCurrent>average)
{
// scoreCurrent values are placed in aboveAve array;
}
}
// display
cout<<"Average: "<<average<<endl;
cout<<"Scores above or equal average: "<<belowAve<<endl;
cout<<"\nScores below average: "<<aboveAve<<endl;
return 0;
}

Answer 1

My guess is that scorecurrent is an array (and index the offset in scorecurrent)? If you think that this will work
std::cin >> scoreCurrent;
then the problems are:
where in scorecurrent will the input be placed (you don't use index)?
(if you want to give scores for all indices) when does the input stop?
Apart from the argument that a vector is better (which it is, because you don't need to specify its size and can just push_back()) I think this solution is a very elegant way to solve your problem.
It uses a lambda function to iterate over all elements of a (fixed-sized) array. There is also another, more traditional solution where the >> operator of std::cin is overloaded for arguments of array types.