Final answer:
The student's request involves modifying a LinkedList template to include a search function that returns the position of a specified value in the list. The provided example code demonstrates adding a search method to the class, and we outline the basic steps that would be represented in a flowchart and pseudocode, as these cannot be visualized in this format.
Step-by-step explanation:
You've been tasked with adding a search function to a LinkedList template in order to locate a specified value within the list. Below is a demonstration of how to implement this in code.
template <typename T>
class LinkedList {
struct Node {
T data;
Node* next;
};
Node* head;
public:
LinkedList() : head(nullptr) {}
~LinkedList(); // Assume this is correctly implemented
int search(const T& value) {
Node* current = head;
int position = 1;
while (current != nullptr) {
if (current->data == value) {
return position; // Value found
}
current = current->next;
position++;
}
return 0; // Value not found
}
// Other LinkedList functions are assumed to be implemented
};
This sample code adds a search member function to the LinkedList class. The function traverses the list from the head node to the end. For each node, it checks if the node's data matches the specified value. If it does, it returns the position of that node in the list (with the first node as position 1). If the value is not found by the end of the list, the function returns 0.
Demonstrating the function in a driver program
int main() {
LinkedList<int> list;
//... Assume code to populate the list
int searchValue = 2;
int position = list.search(searchValue);
if (position) {
std::cout << "Value " << searchValue << " found at position " << position << '.' << std::endl;
} else {
std::cout << "Value " << searchValue << " not found in the list." << std::endl;
}
return 0;
}
Creating a Flowchart and Pseudocode
It's important to note that generating a flowchart would normally require visual tools which can't be represented in plain text or HTML. The same limitation applies to pseudocode. However, I can provide a basic outline of what these should include:
-
- Start
-
- Initialize LinkedList and Populate with data
-
- Call the search function with the value to find
-
- Check if the return value is greater than 0
-
- If yes, print the position of the value
-
- If no, print value not found
-
- End
The pseudocode reflects the process of creating and searching through the LinkedList for a value and then reporting the findings:
BEGIN
LinkedList list = new LinkedList()
//... Code to add elements to the list
position = list.search(searchValue)
IF position > 0 THEN
OUTPUT "Value found at position " + position
ELSE
OUTPUT "Value not found"
ENDIF
END