```cpp
#include // to use cin and cout
#include // to be able to use operator typeid

using namespace std;

// Ignore this; it's a little function used for making tests
inline void _test(const char* expression, const char* file, int line) {
cerr << "test(" << expression << ") failed in file " << file;
cerr << ", line " << line << "." << endl << endl;
}

// This goes along with the above function...don't worry about it
#define test(EXPRESSION) ((EXPRESSION) ? (void)0 : _test(#EXPRESSION, __FILE__, __LINE__))

// Insert here the prototypes of the functions
void coinChanger(int cents, int& c25, int& c10, int& c05, int& c01, int& coinCount);
void printChange(int cents, int c25, int c10, int c05, int c01, int coinCount);

int main() {
// Declare variables amount (amount in cents), count25 (quantity of quarters), count10 (quantity of dimes),
// count5 (quantity of nickels), count1 (quantity of pennies), and count (quantity of coins) to hold whole values
int amount, count25, count10, count5, count1, count{};

// Prompt the user to "Enter amount in cents to be returned as change: "
cout << "Enter amount in cents to be returned as change: " << endl;

// Read the value from the keyboard and store it in the corresponding variable
cin >> amount;

// Call coinChanger() to calculate the quantity of each type of coin and the total number of coins
// that are needed to provide a given change
coinChanger(amount, count25, count10, count5, count1, count);

// Call function printChange() to print the amount of change, the quantity of each type of coin, and the total number of coins
printChange(amount, count25, count10, count5, count1, count);

// Do NOT remove or modify the following statements
cout << endl << "Testing your solution" << endl << endl;
// test(typeid(cents) == typeid(1)); // Incorrect data type used for cents
test(typeid(count25) == typeid(1)); // Incorrect data type used for count25
test(typeid(count10) == typeid(1)); // Incorrect data type used for count10
test(typeid(count5) == typeid(1)); // Incorrect data type used for count5
test(typeid(count1) == typeid(1)); // Incorrect data type used for count1
test(typeid(amount) == typeid(1)); // Incorrect data type used for amount
test(typeid(count) == typeid(1)); // Incorrect data type used for count

coinChanger(71, count25, count10, count5, count1, count);
test(count25 == 2); // Incorrect quantity of quarters
test(count10 == 2); // Incorrect quantity of dimes
test(count5 == 0); // Incorrect quantity of nickels
test(count1 == 1); // Incorrect quantity of pennies

coinChanger(69, count25, count10, count5, count1, count);
test(count25 == 2); // Incorrect quantity of quarters
test(count10 == 1); // Incorrect quantity of dimes
test(count5 == 1); // Incorrect quantity of nickels
test(count1 == 4); // Incorrect quantity of pennies

coinChanger(14, count25, count10, count5, count1, count);
test(count25 == 0); // Incorrect quantity of quarters
test(count10 == 1); // Incorrect quantity of dimes
test(count5 == 0); // Incorrect quantity of nickels
test(count1 == 4); // Incorrect quantity of pennies

return 0;
}

//************************ Function definition *************************

// Calculate the quantity of each type of coin and the total number of coins that are needed to provide a given change
// and return all these values along with the total number of coins that are needed for the change
void coinChanger(int cents, int& count25, int& count10, int& count05, int& count01, int& coinCount) {
count25 = cents / 25;
count10 = (cents - count25 * 25) / 10;
count05 = (cents - count25 * 25 - count10 * 10) / 5;
count01 = (cents - count25 * 25 - count10 * 10 - count05 * 5);
coinCount = count25 + count10 + count05 + count01;
}

// Print the amount of cents, the quantity of each type of coin, and the total number of coins
// according to the format specified in the handout
void printChange(int cents, int c25, int c10, int c05, int c01, int coinCount) {
cout << "You need to use " << coinCount << " coins for a change of " << cents << " cents:" << endl;
cout << endl;
cout << c25 << " Quarters" << endl;
cout << c10 << " Dimes" << endl;
cout << c05 << " Nickels" << endl;
cout << c01 << " Pennies" << endl;
}
```

### Key Adjustments:
1. Added necessary includes for the standard input-output and type identification.
2. Defined functions `coinChanger` and `printChange` with appropriate parameters to enable pass-by-reference.
3. Corrected the use of function calls within `main()`.
4. Adjusted code comments to ensure clarity and continuity.
5. Reformatted the code for readability, including proper indentation and spacing.