Use dataclasses in singly_linked_list.py (TheAlgorithms#9886)

Author: cclauss

DIRECTORY.md

@@ -25,6 +25,7 @@
   * [Combination Sum](backtracking/combination_sum.py)
   * [Hamiltonian Cycle](backtracking/hamiltonian_cycle.py)
   * [Knight Tour](backtracking/knight_tour.py)
+  * [Match Word Pattern](backtracking/match_word_pattern.py)
   * [Minimax](backtracking/minimax.py)
   * [N Queens](backtracking/n_queens.py)
   * [N Queens Math](backtracking/n_queens_math.py)
@@ -199,6 +200,7 @@
     * [Red Black Tree](data_structures/binary_tree/red_black_tree.py)
     * [Segment Tree](data_structures/binary_tree/segment_tree.py)
     * [Segment Tree Other](data_structures/binary_tree/segment_tree_other.py)
+    * [Symmetric Tree](data_structures/binary_tree/symmetric_tree.py)
     * [Treap](data_structures/binary_tree/treap.py)
     * [Wavelet Tree](data_structures/binary_tree/wavelet_tree.py)
   * Disjoint Set
@@ -277,6 +279,7 @@
     * [Convolve](digital_image_processing/filters/convolve.py)
     * [Gabor Filter](digital_image_processing/filters/gabor_filter.py)
     * [Gaussian Filter](digital_image_processing/filters/gaussian_filter.py)
+    * [Laplacian Filter](digital_image_processing/filters/laplacian_filter.py)
     * [Local Binary Pattern](digital_image_processing/filters/local_binary_pattern.py)
     * [Median Filter](digital_image_processing/filters/median_filter.py)
     * [Sobel Filter](digital_image_processing/filters/sobel_filter.py)
@@ -365,8 +368,10 @@
   * [Ind Reactance](electronics/ind_reactance.py)
   * [Ohms Law](electronics/ohms_law.py)
   * [Real And Reactive Power](electronics/real_and_reactive_power.py)
+  * [Resistor Color Code](electronics/resistor_color_code.py)
   * [Resistor Equivalence](electronics/resistor_equivalence.py)
   * [Resonant Frequency](electronics/resonant_frequency.py)
+  * [Wheatstone Bridge](electronics/wheatstone_bridge.py)
 
 ## File Transfer
   * [Receive File](file_transfer/receive_file.py)
@@ -415,6 +420,7 @@
   * [Check Bipartite Graph Dfs](graphs/check_bipartite_graph_dfs.py)
   * [Check Cycle](graphs/check_cycle.py)
   * [Connected Components](graphs/connected_components.py)
+  * [Deep Clone Graph](graphs/deep_clone_graph.py)
   * [Depth First Search](graphs/depth_first_search.py)
   * [Depth First Search 2](graphs/depth_first_search_2.py)
   * [Dijkstra](graphs/dijkstra.py)
@@ -1159,6 +1165,7 @@
   * [Autocomplete Using Trie](strings/autocomplete_using_trie.py)
   * [Barcode Validator](strings/barcode_validator.py)
   * [Boyer Moore Search](strings/boyer_moore_search.py)
+  * [Camel Case To Snake Case](strings/camel_case_to_snake_case.py)
   * [Can String Be Rearranged As Palindrome](strings/can_string_be_rearranged_as_palindrome.py)
   * [Capitalize](strings/capitalize.py)
   * [Check Anagrams](strings/check_anagrams.py)