problems with asserts on kattis 'falling apart'

[TheJast]

doing the kattis problem "fallingapart" for my cs3 class and solving the problem wasn't bad, but we're suposed to add asserts and i dont think i understand what i'm trying to do, and the internet has been mostly unhelpful. i'll put code below with the asserts i'm trying, any help would be appreciated.

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cassert>

using namespace std;

string fallingApart(vector<int>&, int&, int&);
void printEm(int, int);
void test(vector<int>&, int&, int&);


int main() {
	int numPieces, alice, bob; //initializes variable for number of pieces integer breaks into
	cin >> numPieces; // takes input for number of pieces
	vector<int> v(numPieces);//initializes vector to the size input for number of pieces
	
	for (auto& pieces : v) { //auto loop to fill vector with the values of the pieces
		cin >> pieces;
	}
	
	fallingApart(v, alice, bob); 
	printEm(alice, bob);
	test(v, alice, bob);
	return 0;
}

string fallingApart(vector<int> &v, int &alice, int &bob) //function to sort, and have alice and bob take turns picking pieces.
{
	sort(v.rbegin(), v.rend()); //stl sort of vector from first element to element past last element.
	//descending order

	alice = 0;//initialize alice to 0
	bob = 0;//initialize bob to 0

	for (int i = 0; i < v.size(); i++) { //for loop i starts at 0 checking to make sure that i
		// is less than size of vector v.
		if (i % 2 == 0) {  //if statment to determine who's turn it is.  if 2 modulo = 0 it's alices turn.
			alice += v[i]; //if it's alices turn she takes the next number in the vector and adds it to her total
		}
		else {//modulo = 1 it's bobs turn
			bob += v[i];//adds next number in vector to bobs total
		}
	}
	
	return "alice << " " << bob";
	//cout << alice << " " << bob << endl;// prints alices and bobs totals with a space inbetween

}

void printEm(int alice, int bob)
{

	cout << alice << " " << bob << endl;
}

void test(vector<int> &v, int &alice, int &bob)
{
	
	vector<int> x = { 4, 1, 2 };
	assert(fallingApart(x, alice, bob) == "5 2");
	vector<int> y = { 5, 3, 7, 8, 6 };
	assert(fallingApart(y, alice, bob) == "17 12");
	vector<int> z = { 6, 1, 1, 1, 4 };
	assert(fallingApart(z, alice, bob) == "8 5");

	

	cout << "all test cases passed!" << endl;
}

[Repeater]

(fallingApart("3, 1, 5, 4") == 6, 4)


This is a comparison ( == ) between the number 6, and whatever is returned by the function call fallingApart("3, 1, 5, 4")

But that function call doesn't return anything. This makes no sense.

Also, your function call makes no sense.

Look at the function:
void fallingApart(vector<int> &v, int &alice, int &bob)
How many parameters is it expecting? Three.

Look at how you're calling it:
fallingApart("3, 1, 5, 4")
How many parameters are you trying to pass? One, it looks like.

First, write the test function so that you are correctly calling the function. Then, add the asserts.

[TheJast]

thank you, i think i understood what you were saying, i made some changes and got it so i could call it but it still doesn't work when i add asserts. i dont really understand the problem though. it wont run the asserts