Is there a way to link input from two different arrays? - c++

Question

I'm having an issue with some school work where I need to create two arrays one for names and one for scores which allows the user to input into both arrays (i.e. Enter the players name:; Enter the players score:). Then I need to print the arrays in descending score and then ascending alphabetical. As a hint we were told: Using the string sort function combine the two arrays into one then sort.
However I can't figure out how to link the two values to one another so that if I enter Nathan with a score of 87 the two values can't be split apart.
This is what I have so far (with some things I was trying to get to work but couldn't):
#include <iostream>
#include <string>
#include <algorithm>
using namespace std;
int main()
{
string names[10];
int scores[10];
string combine[20];
int count = 0;
while (count < 10){
cout << "Please enter a player's name: ";
cin >> names[count];
cout << "Now enter that player's score: ";
cin >> scores[count];
count++;
}
/*sort(begin(names), end(names));
sort(begin(scores), end(scores));*/
for (int i = 0; i < 10; i++){
cout << names[i] << ": " << scores[i] << "\n";
}
system("pause");
}

Answer 1

You want to "link" them from the very beginning:
struct Student {
string name;
int score;
bool operator<(const Student& rhs) const {
return score > rhs.score || (score == rhs.score && name < rhs.name);
}
};
That way, the sort is easy:
sort(begin(students), end(students));
Otherwise, you'd have to make an array of indices:
int indices[10];
std::iota(begin(indices), end(indices), 0);
And sort that:
std::sort(begin(indices), end(indices), [&](int a, int b){
return scores[a] > scores[b] ||
scores[a] == scores[b] && names[a] < names[b];
});
And then print according to indices:
for (int idx : indices) {
std::cout << names[idx] << " with score " << scores[idx] << '\n';
}

Answer 2

As far as combining the two arrays into one you can do something like this:
// create a struct that of type "result"
// that combines both name and score
struct result
{
string name;
int score;
};
int main()
{
string names[10];
int scores[10];
// array of your struct - same number of elements (10 not 20)
result combine[10];
int count = 0;
while (count < 10){
cout << "Please enter a player's name: ";
cin >> names[count];
cout << "Now enter that player's score: ";
cin >> scores[count];
count++;
}
/*sort(begin(names), end(names));
sort(begin(scores), end(scores));*/
for (int i = 0; i < 10; i++){
cout << names[i] << ": " << scores[i] << "\n";
}
// combine into one array
for(int i = 0; i < 10; ++i)
{
combine[i].name = names[i];
combine[i].score = scores[i];
}
// Now sort the combined array
system("pause");
}