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[feat/fix/docs]: Perform some necessary changes
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@ -3,21 +3,21 @@
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* @brief Implementation of the [Sublist Search
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* Algorithm](https://www.geeksforgeeks.org/sublist-search-search-a-linked-list-in-another-list)
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* @details
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* * Sublist search is used to detect a presence of one list in another
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* list.
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* * Suppose we have a single-node list (let's say the first list), and we
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* want to ensure that the list is present in another list (let's say the second
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* list), then we can perform the sublist search to find it.
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* * Sublist search is used to detect a presence of one list in another list.
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* * Suppose we have a single-node list (let's say the first list), and we
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* want to ensure that the list is present in another list (let's say the second
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* list), then we can perform the sublist search to find it.
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*
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* * For instance, the first list contains these elements: 23 -> 30 -> 41,
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* and the second list contains these elements: 10 -> 15 -> 23 -> 30 -> 41
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* -> 49. At a glance, we see that the first list presents in the second list.
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* * For instance, the first list contains these elements: 23 -> 30 -> 41,
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* and the second list contains these elements: 10 -> 15 -> 23 -> 30 -> 41
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* -> 49. At a glance, we see that the first list presents in the second list.
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*
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* ### Working
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* * The sublist search algorithm works by comparing the first element
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* of the first list with the first element of the second list.
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* * If the two values don't match, it goes to the next element of the
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* second list. It does this until the two values match.
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* ### Working
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*
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* * The sublist search algorithm works by comparing the first element
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* of the first list with the first element of the second list.
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* * If the two values don't match, it goes to the next element of the
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* second list. It does this until the two values match.
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*
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* @author [Nitin Sharma](https://github.com/foo290)
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*/
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@ -27,10 +27,20 @@
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#include <vector> /// for std::vector
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/**
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* @brief A Node structure representing a single link Node in a linked list.
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* @namespace search
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* @brief Searching algorithms
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*/
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namespace search {
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/**
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* @namespace sublist_search
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* @brief Functions for the [Sublist Search](https://www.geeksforgeeks.org/sublist-search-search-a-linked-list-in-another-list) implementation
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*/
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namespace sublist_search {
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/**
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* @brief A Node structure representing a single link Node in a linked list
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*/
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struct Node {
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int data;
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uint32_t data = 0;
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Node *next;
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};
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@ -103,7 +113,7 @@ void printLinkedList(Node *start) {
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* stored in nodes of linked list.
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* @returns Node* A head pointer to the linked list.
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*/
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Node *makeLinkedList(const std::vector<int> &data) {
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Node *makeLinkedList(const std::vector<uint64_t> &data) {
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Node *head = nullptr;
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Node *tail = nullptr;
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for (int i : data) {
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@ -120,9 +130,11 @@ Node *makeLinkedList(const std::vector<int> &data) {
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}
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return head;
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}
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} // namespace sublist_search
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} // namespace search
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/**
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* A class, encapsulating the necessary test cases.
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* @brief class encapsulating the necessary test cases
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*/
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class TestCases {
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private:
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@ -153,13 +165,13 @@ class TestCases {
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log("Description:");
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log(" EDGE CASE : Only contains one element");
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std::vector<int> sublistData = {6};
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std::vector<int> mainlistData = {2, 5, 6, 7, 8};
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std::vector<uint64_t> sublistData = {6};
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std::vector<uint64_t> mainlistData = {2, 5, 6, 7, 8};
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Node *sublistLL = makeLinkedList(sublistData);
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Node *mainlistLL = makeLinkedList(mainlistData);
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search::sublist_search::Node *sublistLL = search::sublist_search::makeLinkedList(sublistData);
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search::sublist_search::Node *mainlistLL = search::sublist_search::makeLinkedList(mainlistData);
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bool exists = sublistSearch(sublistLL, mainlistLL);
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bool exists = search::sublist_search::sublistSearch(sublistLL, mainlistLL);
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log("Checking assert expression...");
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assert(exists == expectedOutput);
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@ -182,8 +194,8 @@ class TestCases {
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log("Description:");
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log(" contains main list of 100 elements and sublist of 20");
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std::vector<int> sublistData(20);
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std::vector<int> mainlistData(100);
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std::vector<uint64_t> sublistData(20);
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std::vector<uint64_t> mainlistData(100);
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for (int i = 0; i < 100; i++) {
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// Inserts 100 elements in main list
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@ -197,10 +209,10 @@ class TestCases {
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temp++;
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}
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Node *sublistLL = makeLinkedList(sublistData);
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Node *mainlistLL = makeLinkedList(mainlistData);
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search::sublist_search::Node *sublistLL = search::sublist_search::makeLinkedList(sublistData);
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search::sublist_search::Node *mainlistLL = search::sublist_search::makeLinkedList(mainlistData);
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bool exists = sublistSearch(sublistLL, mainlistLL);
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bool exists = search::sublist_search::sublistSearch(sublistLL, mainlistLL);
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log("Checking assert expression...");
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assert(exists == expectedOutput);
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@ -220,8 +232,8 @@ class TestCases {
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log("Description:");
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log(" contains main list of 50 elements and sublist of 20");
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std::vector<int> sublistData(20);
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std::vector<int> mainlistData(50);
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std::vector<uint64_t> sublistData(20);
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std::vector<uint64_t> mainlistData(50);
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for (int i = 0; i < 50; i++) {
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// Inserts 100 elements in main list
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@ -233,10 +245,10 @@ class TestCases {
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sublistData.push_back(i + 1);
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}
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Node *sublistLL = makeLinkedList(sublistData);
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Node *mainlistLL = makeLinkedList(mainlistData);
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search::sublist_search::Node *sublistLL = search::sublist_search::makeLinkedList(sublistData);
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search::sublist_search::Node *mainlistLL = search::sublist_search::makeLinkedList(mainlistData);
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bool exists = sublistSearch(sublistLL, mainlistLL);
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bool exists = search::sublist_search::sublistSearch(sublistLL, mainlistLL);
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log("Checking assert expression...");
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assert(exists == expectedOutput);
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@ -264,26 +276,26 @@ static void test() {
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* @returns 0 on exit
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*/
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int main(int argc, char *argv[]) {
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test(); // Executing various test cases first.
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test(); // run self-test implementations
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std::vector<int> mainlistData = {2, 5, 6, 7, 8};
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std::vector<int> sublistData = {6, 8};
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Node *mainlistLL = makeLinkedList(mainlistData);
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Node *sublistLL = makeLinkedList(sublistData);
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std::vector<uint64_t> mainlistData = {2, 5, 6, 7, 8};
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std::vector<uint64_t> sublistData = {6, 8};
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search::sublist_search::Node *mainlistLL = search::sublist_search::makeLinkedList(mainlistData);
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search::sublist_search::Node *sublistLL = search::sublist_search::makeLinkedList(sublistData);
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bool exists = sublistSearch(sublistLL, mainlistLL);
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bool exists = search::sublist_search::sublistSearch(sublistLL, mainlistLL);
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std::cout << "Sublist :" << std::endl;
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printLinkedList(sublistLL);
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search::sublist_search::printLinkedList(sublistLL);
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std::cout << "Main list : " << std::endl;
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printLinkedList(mainlistLL);
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search::sublist_search::printLinkedList(mainlistLL);
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std::cout << std::endl;
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if (exists) {
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std::cout << "[TRUE] - sublist found in main list";
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std::cout << "[TRUE] - sublist found in main list\n";
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} else {
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std::cout << "[FALSE] - sublist NOT found in main list";
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std::cout << "[FALSE] - sublist NOT found in main list\n";
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}
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return 0;
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}
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