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Hopscotch Help

Unisaurus (52)
Hey y'all I need help on a bit of my homework for class, and I'm just not understanding what I need to do.
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  Write a function that swaps three numbers without using extra variables.
void swap (int &a, int &b, int c)
{
 //Fill me in
}
 Note: Do not call any other functions or use bitwise operations.

Write a C++ program to test a function called hopscotch() that accepts an integer number of hops as
its parameter and prints a pattern of numbers that resembles a hopscotch board. A hop is three-number
sequence where the output show two numbers on a line, followed by one number on its own line. 0 hops
is a board up to 1; one hop is a board up to 4; two hops is board up to 7, and so on. A call of
hopscotch(0) should only print the number 1. Output should look similar to below.
Sample Run:
Enter number of hops: 2
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2 3
 4
5 6
 7
Fill in the missing parts of the program below to solve the problem as stated above. Do not add any
additional lines of code. (10 @ 2 each)
//Hopscotch.cpp
#include <iostream>
_#include <iomanip>_ //1
using namespace std;
void hopscotch(int hops);
int main()
{
 int value;
 ____cout << "How many hops?" << endl;_ //2
 cin >> value;
 ________________ //3
 return 0;
}
void hopscotch(int hops) {
 for (int i = 1; i <= hops * 3 + 1; i++) {
if (i % 3 == 1)
 ________________________ //4
else if (______________) //5
 cout << setw(2) << i;
else
 cout << setw(4) << i << endl;
 }
}
7
Pre Test- This part has already been taken. Your score


Thanks in advance! I'm not completely sure on the wording of the first problem...than the second one I just not sure where to go with...Thank you!
closed account (LNboLyTq)
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void swap(int &a, int &b, int c)
{
    c = a;
    a = b;
    b = c;
}
Unisaurus (52)
Thank you so much! I understand what he was talking about now. Now I just need help with the hopscotch problem :)
mamabear021 (1)
Did you ever get help on the Hopscotch problem? Having issues w/ it as well :(
Unisaurus (52)
Yes I did his code that he posted was a little messed up. 

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 #include <iostream>
#include <iomanip> <---- this is for the setw

using namespace std;

void hopscotch (int hops);

int main ()
{

int value;

cout << "Enter your number of hops : " << endl;
cin >> value; // He should have made this hops and in the IDE it works with hops not value.

hopscotch (hops);

return 0;

}

void hopscotch (int hops)
{
for (int i=1; i <= hops *3 +1; i++)
{
if (i % 3 == 1)
cout << setw(0) << i;
else if(i==0)
cout << setw(2) << i;
else 
cout << setw(4) << i << endl;
}
}


I hope this helps, I wrote this code out so that I could see how it works instead of just seeing it on paper, and it gives you the right answer. It is just the fact that his variable is messed up.
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