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@@ -34,7 +34,6 @@ implementation 'com.github.javadev:leetcode-in-kotlin:1.18'
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> ["For coding interview preparation, LeetCode is one of the best online resource providing a rich library of more than 300 real coding interview questions for you to practice from using one of the 7 supported languages - C, C++, Java, Python, C#, JavaScript, Ruby."](https://www.quora.com/How-effective-is-Leetcode-for-preparing-for-technical-interviews)
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##
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* [Algorithm I](#algorithm-i)
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* [Algorithm II](#algorithm-ii)
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* [Binary Search I](#binary-search-i)
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* [Binary Search II](#binary-search-ii)
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* [Udemy](#udemy)
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* [Data Structure I](#data-structure-i)
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* [Data Structure II](#data-structure-ii)
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### Algorithm I
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#### Day 1 Binary Search
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0704 |[Binary Search](src/main/kotlin/g0701_0800/s0704_binary_search/Solution.kt)| Easy | Array, Binary_Search | 261 | 77.91
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| 0278 |[First Bad Version](src/main/kotlin/g0201_0300/s0278_first_bad_version/Solution.kt)| Easy | Binary_Search, Interactive | 349 | 76.86
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| 0035 |[Search Insert Position](src/main/kotlin/g0001_0100/s0035_search_insert_position/Solution.kt)| Easy | Top_100_Liked_Questions, Array, Binary_Search, Big_O_Time_O(log_n)_Space_O(1) | 159 | 93.03
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#### Day 2 Two Pointers
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0977 |[Squares of a Sorted Array](src/main/kotlin/g0901_1000/s0977_squares_of_a_sorted_array/Solution.kt)| Easy | Array, Sorting, Two_Pointers | 271 | 77.17
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| 0189 |[Rotate Array](src/main/kotlin/g0101_0200/s0189_rotate_array/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Array, Math, Two_Pointers, Big_O_Time_O(n)_Space_O(1) | 483 | 86.95
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#### Day 3 Two Pointers
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0283 |[Move Zeroes](src/main/kotlin/g0201_0300/s0283_move_zeroes/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Array, Two_Pointers, Big_O_Time_O(n)_Space_O(1) | 516 | 79.07
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| 0167 |[Two Sum II - Input Array Is Sorted](src/main/kotlin/g0101_0200/s0167_two_sum_ii_input_array_is_sorted/Solution.kt)| Medium | Array, Binary_Search, Two_Pointers | 403 | 68.74
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#### Day 4 Two Pointers
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0344 |[Reverse String](src/main/kotlin/g0301_0400/s0344_reverse_string/Solution.kt)| Easy | Top_Interview_Questions, String, Two_Pointers, Recursion | 445 | 69.75
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| 0557 |[Reverse Words in a String III](src/main/kotlin/g0501_0600/s0557_reverse_words_in_a_string_iii/Solution.kt)| Easy | String, Two_Pointers | 215 | 98.10
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#### Day 5 Two Pointers
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0876 |[Middle of the Linked List](src/main/kotlin/g0801_0900/s0876_middle_of_the_linked_list/Solution.kt)| Easy | Two_Pointers, Linked_List | 136 | 76.52
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| 0019 |[Remove Nth Node From End of List](src/main/kotlin/g0001_0100/s0019_remove_nth_node_from_end_of_list/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Two_Pointers, Linked_List, Big_O_Time_O(L)_Space_O(L) | 144 | 96.28
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#### Day 6 Sliding Window
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0003 |[Longest Substring Without Repeating Characters](src/main/kotlin/g0001_0100/s0003_longest_substring_without_repeating_characters/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, String, Hash_Table, Sliding_Window, Big_O_Time_O(n)_Space_O(1) | 201 | 87.28
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| 0567 |[Permutation in String](src/main/kotlin/g0501_0600/s0567_permutation_in_string/Solution.kt)| Medium | String, Hash_Table, Two_Pointers, Sliding_Window | 169 | 100.00
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#### Day 7 Breadth First Search Depth First Search
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0733 |[Flood Fill](src/main/kotlin/g0701_0800/s0733_flood_fill/Solution.kt)| Easy | Array, Depth_First_Search, Breadth_First_Search, Matrix | 230 | 97.76
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| 0695 |[Max Area of Island](src/main/kotlin/g0601_0700/s0695_max_area_of_island/Solution.kt)| Medium | Array, Depth_First_Search, Breadth_First_Search, Matrix, Union_Find | 324 | 24.06
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#### Day 8 Breadth First Search Depth First Search
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0617 |[Merge Two Binary Trees](src/main/kotlin/g0601_0700/s0617_merge_two_binary_trees/Solution.kt)| Easy | Depth_First_Search, Breadth_First_Search, Tree, Binary_Tree | 243 | 72.83
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| 0116 |[Populating Next Right Pointers in Each Node](src/main/kotlin/g0101_0200/s0116_populating_next_right_pointers_in_each_node/Solution.kt)| Medium | Top_Interview_Questions, Depth_First_Search, Breadth_First_Search, Tree, Binary_Tree, Linked_List | 355 | 69.02
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#### Day 9 Breadth First Search Depth First Search
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0542 |[01 Matrix](src/main/kotlin/g0501_0600/s0542_01_matrix/Solution.kt)| Medium | Array, Dynamic_Programming, Breadth_First_Search, Matrix | 441 | 94.06
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| 0994 |[Rotting Oranges](src/main/kotlin/g0901_1000/s0994_rotting_oranges/Solution.kt)| Medium | Array, Breadth_First_Search, Matrix | 164 | 82.95
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#### Day 10 Recursion Backtracking
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0021 |[Merge Two Sorted Lists](src/main/kotlin/g0001_0100/s0021_merge_two_sorted_lists/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Linked_List, Recursion, Big_O_Time_O(m+n)_Space_O(m+n) | 157 | 92.24
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| 0206 |[Reverse Linked List](src/main/kotlin/g0201_0300/s0206_reverse_linked_list/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Linked_List, Recursion, Big_O_Time_O(N)_Space_O(1) | 279 | 45.78
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#### Day 11 Recursion Backtracking
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0077 |[Combinations](src/main/kotlin/g0001_0100/s0077_combinations/Solution.kt)| Medium | Backtracking | 232 | 100.00
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| 0046 |[Permutations](src/main/kotlin/g0001_0100/s0046_permutations/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Array, Backtracking, Big_O_Time_O(n\*n!)_Space_O(n+n!) | 188 | 99.00
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| 0784 |[Letter Case Permutation](src/main/kotlin/g0701_0800/s0784_letter_case_permutation/Solution.kt)| Medium | String, Bit_Manipulation, Backtracking | 219 | 84.62
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#### Day 12 Dynamic Programming
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0070 |[Climbing Stairs](src/main/kotlin/g0001_0100/s0070_climbing_stairs/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Dynamic_Programming, Math, Memoization, Big_O_Time_O(n)_Space_O(n) | 124 | 71.98
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| 0198 |[House Robber](src/main/kotlin/g0101_0200/s0198_house_robber/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Array, Dynamic_Programming, Big_O_Time_O(n)_Space_O(n) | 156 | 92.24
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| 0120 |[Triangle](src/main/kotlin/g0101_0200/s0120_triangle/Solution.kt)| Medium | Array, Dynamic_Programming | 194 | 97.87
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#### Day 13 Bit Manipulation
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| 0231 |[Power of Two](src/main/kotlin/g0201_0300/s0231_power_of_two/Solution.kt)| Easy | Math, Bit_Manipulation, Recursion | 161 | 86.81
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| 0191 |[Number of 1 Bits](src/main/kotlin/g0101_0200/s0191_number_of_1_bits/Solution.kt)| Easy | Top_Interview_Questions, Bit_Manipulation | 237 | 68.44
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#### Day 14 Bit Manipulation
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| 0190 |[Reverse Bits](src/main/kotlin/g0101_0200/s0190_reverse_bits/Solution.kt)| Easy | Top_Interview_Questions, Bit_Manipulation, Divide_and_Conquer | 198 | 81.82
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| 0136 |[Single Number](src/main/kotlin/g0101_0200/s0136_single_number/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Array, Bit_Manipulation, Big_O_Time_O(N)_Space_O(1) | 344 | 83.63
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* [Algorithm I](#algorithm-i)
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### Algorithm II
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| 0451 |[Sort Characters By Frequency](src/main/kotlin/g0401_0500/s0451_sort_characters_by_frequency/Solution.kt)| Medium | String, Hash_Table, Sorting, Heap_Priority_Queue, Counting, Bucket_Sort | 288 | 81.72
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| 0973 |[K Closest Points to Origin](src/main/kotlin/g0901_1000/s0973_k_closest_points_to_origin/Solution.kt)| Medium | Array, Math, Sorting, Heap_Priority_Queue, Divide_and_Conquer, Geometry, Quickselect | 800 | 37.89
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### Algorithm I
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#### Day 1 Binary Search
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0704 |[Binary Search](src/main/kotlin/g0701_0800/s0704_binary_search/Solution.kt)| Easy | Array, Binary_Search | 261 | 77.91
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| 0278 |[First Bad Version](src/main/kotlin/g0201_0300/s0278_first_bad_version/Solution.kt)| Easy | Binary_Search, Interactive | 349 | 76.86
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| 0035 |[Search Insert Position](src/main/kotlin/g0001_0100/s0035_search_insert_position/Solution.kt)| Easy | Top_100_Liked_Questions, Array, Binary_Search, Big_O_Time_O(log_n)_Space_O(1) | 159 | 93.03
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#### Day 2 Two Pointers
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0977 |[Squares of a Sorted Array](src/main/kotlin/g0901_1000/s0977_squares_of_a_sorted_array/Solution.kt)| Easy | Array, Sorting, Two_Pointers | 271 | 77.17
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| 0189 |[Rotate Array](src/main/kotlin/g0101_0200/s0189_rotate_array/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Array, Math, Two_Pointers, Big_O_Time_O(n)_Space_O(1) | 483 | 86.95
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#### Day 3 Two Pointers
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0283 |[Move Zeroes](src/main/kotlin/g0201_0300/s0283_move_zeroes/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Array, Two_Pointers, Big_O_Time_O(n)_Space_O(1) | 516 | 79.07
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| 0167 |[Two Sum II - Input Array Is Sorted](src/main/kotlin/g0101_0200/s0167_two_sum_ii_input_array_is_sorted/Solution.kt)| Medium | Array, Binary_Search, Two_Pointers | 403 | 68.74
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#### Day 4 Two Pointers
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0344 |[Reverse String](src/main/kotlin/g0301_0400/s0344_reverse_string/Solution.kt)| Easy | Top_Interview_Questions, String, Two_Pointers, Recursion | 445 | 69.75
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| 0557 |[Reverse Words in a String III](src/main/kotlin/g0501_0600/s0557_reverse_words_in_a_string_iii/Solution.kt)| Easy | String, Two_Pointers | 215 | 98.10
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#### Day 5 Two Pointers
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| 0876 |[Middle of the Linked List](src/main/kotlin/g0801_0900/s0876_middle_of_the_linked_list/Solution.kt)| Easy | Two_Pointers, Linked_List | 136 | 76.52
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| 0019 |[Remove Nth Node From End of List](src/main/kotlin/g0001_0100/s0019_remove_nth_node_from_end_of_list/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Two_Pointers, Linked_List, Big_O_Time_O(L)_Space_O(L) | 144 | 96.28
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#### Day 6 Sliding Window
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0003 |[Longest Substring Without Repeating Characters](src/main/kotlin/g0001_0100/s0003_longest_substring_without_repeating_characters/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, String, Hash_Table, Sliding_Window, Big_O_Time_O(n)_Space_O(1) | 201 | 87.28
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| 0567 |[Permutation in String](src/main/kotlin/g0501_0600/s0567_permutation_in_string/Solution.kt)| Medium | String, Hash_Table, Two_Pointers, Sliding_Window | 169 | 100.00
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#### Day 7 Breadth First Search Depth First Search
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| 0733 |[Flood Fill](src/main/kotlin/g0701_0800/s0733_flood_fill/Solution.kt)| Easy | Array, Depth_First_Search, Breadth_First_Search, Matrix | 230 | 97.76
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| 0695 |[Max Area of Island](src/main/kotlin/g0601_0700/s0695_max_area_of_island/Solution.kt)| Medium | Array, Depth_First_Search, Breadth_First_Search, Matrix, Union_Find | 324 | 24.06
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#### Day 8 Breadth First Search Depth First Search
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| 0617 |[Merge Two Binary Trees](src/main/kotlin/g0601_0700/s0617_merge_two_binary_trees/Solution.kt)| Easy | Depth_First_Search, Breadth_First_Search, Tree, Binary_Tree | 243 | 72.83
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| 0116 |[Populating Next Right Pointers in Each Node](src/main/kotlin/g0101_0200/s0116_populating_next_right_pointers_in_each_node/Solution.kt)| Medium | Top_Interview_Questions, Depth_First_Search, Breadth_First_Search, Tree, Binary_Tree, Linked_List | 355 | 69.02
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#### Day 9 Breadth First Search Depth First Search
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| 0542 |[01 Matrix](src/main/kotlin/g0501_0600/s0542_01_matrix/Solution.kt)| Medium | Array, Dynamic_Programming, Breadth_First_Search, Matrix | 441 | 94.06
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| 0994 |[Rotting Oranges](src/main/kotlin/g0901_1000/s0994_rotting_oranges/Solution.kt)| Medium | Array, Breadth_First_Search, Matrix | 164 | 82.95
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#### Day 10 Recursion Backtracking
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0021 |[Merge Two Sorted Lists](src/main/kotlin/g0001_0100/s0021_merge_two_sorted_lists/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Linked_List, Recursion, Big_O_Time_O(m+n)_Space_O(m+n) | 157 | 92.24
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| 0206 |[Reverse Linked List](src/main/kotlin/g0201_0300/s0206_reverse_linked_list/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Linked_List, Recursion, Big_O_Time_O(N)_Space_O(1) | 279 | 45.78
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#### Day 11 Recursion Backtracking
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| 0077 |[Combinations](src/main/kotlin/g0001_0100/s0077_combinations/Solution.kt)| Medium | Backtracking | 232 | 100.00
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| 0046 |[Permutations](src/main/kotlin/g0001_0100/s0046_permutations/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Array, Backtracking, Big_O_Time_O(n\*n!)_Space_O(n+n!) | 188 | 99.00
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| 0784 |[Letter Case Permutation](src/main/kotlin/g0701_0800/s0784_letter_case_permutation/Solution.kt)| Medium | String, Bit_Manipulation, Backtracking | 219 | 84.62
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#### Day 12 Dynamic Programming
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0070 |[Climbing Stairs](src/main/kotlin/g0001_0100/s0070_climbing_stairs/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Dynamic_Programming, Math, Memoization, Big_O_Time_O(n)_Space_O(n) | 124 | 71.98
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| 0198 |[House Robber](src/main/kotlin/g0101_0200/s0198_house_robber/Solution.kt)| Medium | Top_100_Liked_Questions, Top_Interview_Questions, Array, Dynamic_Programming, Big_O_Time_O(n)_Space_O(n) | 156 | 92.24
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| 0120 |[Triangle](src/main/kotlin/g0101_0200/s0120_triangle/Solution.kt)| Medium | Array, Dynamic_Programming | 194 | 97.87
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#### Day 13 Bit Manipulation
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0231 |[Power of Two](src/main/kotlin/g0201_0300/s0231_power_of_two/Solution.kt)| Easy | Math, Bit_Manipulation, Recursion | 161 | 86.81
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| 0191 |[Number of 1 Bits](src/main/kotlin/g0101_0200/s0191_number_of_1_bits/Solution.kt)| Easy | Top_Interview_Questions, Bit_Manipulation | 237 | 68.44
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#### Day 14 Bit Manipulation
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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| 0190 |[Reverse Bits](src/main/kotlin/g0101_0200/s0190_reverse_bits/Solution.kt)| Easy | Top_Interview_Questions, Bit_Manipulation, Divide_and_Conquer | 198 | 81.82
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| 0136 |[Single Number](src/main/kotlin/g0101_0200/s0136_single_number/Solution.kt)| Easy | Top_100_Liked_Questions, Top_Interview_Questions, Array, Bit_Manipulation, Big_O_Time_O(N)_Space_O(1) | 344 | 83.63
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## Contributing
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Your ideas/fixes/algorithms are more than welcome!
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