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‎README.md‎

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[![](https://img.shields.io/github/forks/javadev/LeetCode-in-Kotlin?label=Fork%20me%20on%20GitHub%20&style=flat-square)](https://github.com/javadev/LeetCode-in-Kotlin/fork)
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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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* [SQL I](#sql-i)
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* [Level 1](#level-1)
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* [Level 2](#level-2)
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* [Udemy](#udemy)
@@ -21,91 +20,7 @@
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* [Programming Skills I](#programming-skills-i)
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* [Programming Skills II](#programming-skills-ii)
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* [Graph Theory I](#graph-theory-i)
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### SQL I
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27-
#### Day 1 Select
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0595 |[Big Countries](src/main/kotlin/g0501_0600/s0595_big_countries)| Easy | Database | 417 | 56.09
32-
| 1757 |[Recyclable and Low Fat Products](src/main/kotlin/g1701_1800/s1757_recyclable_and_low_fat_products)| Easy | Database | 1237 | 34.20
33-
| 0584 |[Find Customer Referee](src/main/kotlin/g0501_0600/s0584_find_customer_referee)| Easy | Database | 779 | 43.48
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| 0183 |[Customers Who Never Order](src/main/kotlin/g0101_0200/s0183_customers_who_never_order)| Easy | Database | 712 | 33.67
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#### Day 2 Select and Order
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 1873 |[Calculate Special Bonus](src/main/kotlin/g1801_1900/s1873_calculate_special_bonus)| Easy | Database | 1321 | 33.12
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| 0627 |[Swap Salary](src/main/kotlin/g0601_0700/s0627_swap_salary)| Easy | Database | 400 | 51.04
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| 0196 |[Delete Duplicate Emails](src/main/kotlin/g0101_0200/s0196_delete_duplicate_emails)| Easy | Database | 593 | 94.17
43-
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#### Day 3 String Processing Functions
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
48-
| 1667 |[Fix Names in a Table](src/main/kotlin/g1601_1700/s1667_fix_names_in_a_table)| Easy | Database | 1196 | 61.40
49-
| 1484 |[Group Sold Products By The Date](src/main/kotlin/g1401_1500/s1484_group_sold_products_by_the_date)| Easy | LeetCode_Curated_SQL_70, Database | 899 | 40.76
50-
| 1527 |[Patients With a Condition](src/main/kotlin/g1501_1600/s1527_patients_with_a_condition)| Easy | Database | 708 | 48.23
51-
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#### Day 4 Union and Select
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 1965 |[Employees With Missing Information](src/main/kotlin/g1901_2000/s1965_employees_with_missing_information)| Easy | Database | 949 | 88.66
57-
| 1795 |[Rearrange Products Table](src/main/kotlin/g1701_1800/s1795_rearrange_products_table)| Easy | Database | 1027 | 67.57
58-
| 0608 |[Tree Node](src/main/kotlin/g0601_0700/s0608_tree_node)| Medium | LeetCode_Curated_SQL_70, Database | 794 | 48.38
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| 0176 |[Second Highest Salary](src/main/kotlin/g0101_0200/s0176_second_highest_salary)| Medium | Database | 219 | 92.54
60-
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#### Day 5 Union
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
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|-|-|-|-|-|-
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| 0175 |[Combine Two Tables](src/main/kotlin/g0101_0200/s0175_combine_two_tables)| Easy | Database | 473 | 54.97
66-
| 1581 |[Customer Who Visited but Did Not Make Any Transactions](src/main/kotlin/g1501_1600/s1581_customer_who_visited_but_did_not_make_any_transactions)| Easy | Database | 2771 | 54.68
67-
| 1148 |[Article Views I](src/main/kotlin/g1101_1200/s1148_article_views_i)| Easy | LeetCode_Curated_SQL_70, Database | 806 | 54.41
68-
69-
#### Day 6 Union
70-
71-
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
72-
|-|-|-|-|-|-
73-
| 0197 |[Rising Temperature](src/main/kotlin/g0101_0200/s0197_rising_temperature)| Easy | Database | 394 | 94.15
74-
| 0607 |[Sales Person](src/main/kotlin/g0601_0700/s0607_sales_person)| Easy | LeetCode_Curated_SQL_70, Database | 2142 | 44.56
75-
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#### Day 7 Function
77-
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
79-
|-|-|-|-|-|-
80-
| 1141 |[User Activity for the Past 30 Days I](src/main/kotlin/g1101_1200/s1141_user_activity_for_the_past_30_days_i)| Easy | LeetCode_Curated_SQL_70, Database | 790 | 87.11
81-
| 1693 |[Daily Leads and Partners](src/main/kotlin/g1601_1700/s1693_daily_leads_and_partners)| Easy | Database | 1115 | 52.84
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| 1729 |[Find Followers Count](src/main/kotlin/g1701_1800/s1729_find_followers_count)| Easy | Database | 1228 | 38.04
83-
84-
#### Day 8 Function
85-
86-
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
87-
|-|-|-|-|-|-
88-
| 0586 |[Customer Placing the Largest Number of Orders](src/main/kotlin/g0501_0600/s0586_customer_placing_the_largest_number_of_orders)| Easy | LeetCode_Curated_SQL_70, Database | 768 | 44.85
89-
| 0511 |[Game Play Analysis I](src/main/kotlin/g0501_0600/s0511_game_play_analysis_i)| Easy | LeetCode_Curated_SQL_70, Database | 790 | 45.04
90-
| 1890 |[The Latest Login in 2020](src/main/kotlin/g1801_1900/s1890_the_latest_login_in_2020)| Easy | Database | 1280 | 43.62
91-
| 1741 |[Find Total Time Spent by Each Employee](src/main/kotlin/g1701_1800/s1741_find_total_time_spent_by_each_employee)| Easy | Database | 1101 | 51.40
92-
93-
#### Day 9 Control of Flow
94-
95-
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
96-
|-|-|-|-|-|-
97-
| 1393 |[Capital Gain/Loss](src/main/kotlin/g1301_1400/s1393_capital_gainloss)| Medium | LeetCode_Curated_SQL_70, Database | 990 | 47.36
98-
| 1407 |[Top Travellers](src/main/kotlin/g1401_1500/s1407_top_travellers)| Easy | LeetCode_Curated_SQL_70, Database | 1394 | 98.43
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| 1158 |[Market Analysis I](src/main/kotlin/g1101_1200/s1158_market_analysis_i)| Medium | Database | 2470 | 44.76
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#### Day 10 Where
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| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
104-
|-|-|-|-|-|-
105-
| 0182 |[Duplicate Emails](src/main/kotlin/g0101_0200/s0182_duplicate_emails)| Easy | Database | 396 | 68.40
106-
| 1050 |[Actors and Directors Who Cooperated At Least Three Times](src/main/kotlin/g1001_1100/s1050_actors_and_directors_who_cooperated_at_least_three_times)| Easy | LeetCode_Curated_SQL_70, Database | 629 | 81.02
107-
| 1587 |[Bank Account Summary II](src/main/kotlin/g1501_1600/s1587_bank_account_summary_ii)| Easy | Database | 1582 | 52.96
108-
| 1084 |[Sales Analysis III](src/main/kotlin/g1001_1100/s1084_sales_analysis_iii)| Easy | LeetCode_Curated_SQL_70, Database | 1881 | 79.36
23+
* [SQL I](#sql-i)
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11025
### Level 1
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@@ -2084,6 +1999,91 @@
20841999
| 0886 |[Possible Bipartition](src/main/kotlin/g0801_0900/s0886_possible_bipartition)| Medium | Depth_First_Search, Breadth_First_Search, Graph, Union_Find | 397 | 100.00
20852000
| 0785 |[Is Graph Bipartite?](src/main/kotlin/g0701_0800/s0785_is_graph_bipartite)| Medium | Depth_First_Search, Breadth_First_Search, Graph, Union_Find | 215 | 82.35
20862001

2002+
### SQL I
2003+
2004+
#### Day 1 Select
2005+
2006+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2007+
|-|-|-|-|-|-
2008+
| 0595 |[Big Countries](src/main/kotlin/g0501_0600/s0595_big_countries)| Easy | Database | 417 | 56.09
2009+
| 1757 |[Recyclable and Low Fat Products](src/main/kotlin/g1701_1800/s1757_recyclable_and_low_fat_products)| Easy | Database | 1237 | 34.20
2010+
| 0584 |[Find Customer Referee](src/main/kotlin/g0501_0600/s0584_find_customer_referee)| Easy | Database | 779 | 43.48
2011+
| 0183 |[Customers Who Never Order](src/main/kotlin/g0101_0200/s0183_customers_who_never_order)| Easy | Database | 712 | 33.67
2012+
2013+
#### Day 2 Select and Order
2014+
2015+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2016+
|-|-|-|-|-|-
2017+
| 1873 |[Calculate Special Bonus](src/main/kotlin/g1801_1900/s1873_calculate_special_bonus)| Easy | Database | 1321 | 33.12
2018+
| 0627 |[Swap Salary](src/main/kotlin/g0601_0700/s0627_swap_salary)| Easy | Database | 400 | 51.04
2019+
| 0196 |[Delete Duplicate Emails](src/main/kotlin/g0101_0200/s0196_delete_duplicate_emails)| Easy | Database | 593 | 94.17
2020+
2021+
#### Day 3 String Processing Functions
2022+
2023+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2024+
|-|-|-|-|-|-
2025+
| 1667 |[Fix Names in a Table](src/main/kotlin/g1601_1700/s1667_fix_names_in_a_table)| Easy | Database | 1196 | 61.40
2026+
| 1484 |[Group Sold Products By The Date](src/main/kotlin/g1401_1500/s1484_group_sold_products_by_the_date)| Easy | LeetCode_Curated_SQL_70, Database | 899 | 40.76
2027+
| 1527 |[Patients With a Condition](src/main/kotlin/g1501_1600/s1527_patients_with_a_condition)| Easy | Database | 708 | 48.23
2028+
2029+
#### Day 4 Union and Select
2030+
2031+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2032+
|-|-|-|-|-|-
2033+
| 1965 |[Employees With Missing Information](src/main/kotlin/g1901_2000/s1965_employees_with_missing_information)| Easy | Database | 949 | 88.66
2034+
| 1795 |[Rearrange Products Table](src/main/kotlin/g1701_1800/s1795_rearrange_products_table)| Easy | Database | 1027 | 67.57
2035+
| 0608 |[Tree Node](src/main/kotlin/g0601_0700/s0608_tree_node)| Medium | LeetCode_Curated_SQL_70, Database | 794 | 48.38
2036+
| 0176 |[Second Highest Salary](src/main/kotlin/g0101_0200/s0176_second_highest_salary)| Medium | Database | 219 | 92.54
2037+
2038+
#### Day 5 Union
2039+
2040+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2041+
|-|-|-|-|-|-
2042+
| 0175 |[Combine Two Tables](src/main/kotlin/g0101_0200/s0175_combine_two_tables)| Easy | Database | 473 | 54.97
2043+
| 1581 |[Customer Who Visited but Did Not Make Any Transactions](src/main/kotlin/g1501_1600/s1581_customer_who_visited_but_did_not_make_any_transactions)| Easy | Database | 2771 | 54.68
2044+
| 1148 |[Article Views I](src/main/kotlin/g1101_1200/s1148_article_views_i)| Easy | LeetCode_Curated_SQL_70, Database | 806 | 54.41
2045+
2046+
#### Day 6 Union
2047+
2048+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2049+
|-|-|-|-|-|-
2050+
| 0197 |[Rising Temperature](src/main/kotlin/g0101_0200/s0197_rising_temperature)| Easy | Database | 394 | 94.15
2051+
| 0607 |[Sales Person](src/main/kotlin/g0601_0700/s0607_sales_person)| Easy | LeetCode_Curated_SQL_70, Database | 2142 | 44.56
2052+
2053+
#### Day 7 Function
2054+
2055+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2056+
|-|-|-|-|-|-
2057+
| 1141 |[User Activity for the Past 30 Days I](src/main/kotlin/g1101_1200/s1141_user_activity_for_the_past_30_days_i)| Easy | LeetCode_Curated_SQL_70, Database | 790 | 87.11
2058+
| 1693 |[Daily Leads and Partners](src/main/kotlin/g1601_1700/s1693_daily_leads_and_partners)| Easy | Database | 1115 | 52.84
2059+
| 1729 |[Find Followers Count](src/main/kotlin/g1701_1800/s1729_find_followers_count)| Easy | Database | 1228 | 38.04
2060+
2061+
#### Day 8 Function
2062+
2063+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2064+
|-|-|-|-|-|-
2065+
| 0586 |[Customer Placing the Largest Number of Orders](src/main/kotlin/g0501_0600/s0586_customer_placing_the_largest_number_of_orders)| Easy | LeetCode_Curated_SQL_70, Database | 768 | 44.85
2066+
| 0511 |[Game Play Analysis I](src/main/kotlin/g0501_0600/s0511_game_play_analysis_i)| Easy | LeetCode_Curated_SQL_70, Database | 790 | 45.04
2067+
| 1890 |[The Latest Login in 2020](src/main/kotlin/g1801_1900/s1890_the_latest_login_in_2020)| Easy | Database | 1280 | 43.62
2068+
| 1741 |[Find Total Time Spent by Each Employee](src/main/kotlin/g1701_1800/s1741_find_total_time_spent_by_each_employee)| Easy | Database | 1101 | 51.40
2069+
2070+
#### Day 9 Control of Flow
2071+
2072+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2073+
|-|-|-|-|-|-
2074+
| 1393 |[Capital Gain/Loss](src/main/kotlin/g1301_1400/s1393_capital_gainloss)| Medium | LeetCode_Curated_SQL_70, Database | 990 | 47.36
2075+
| 1407 |[Top Travellers](src/main/kotlin/g1401_1500/s1407_top_travellers)| Easy | LeetCode_Curated_SQL_70, Database | 1394 | 98.43
2076+
| 1158 |[Market Analysis I](src/main/kotlin/g1101_1200/s1158_market_analysis_i)| Medium | Database | 2470 | 44.76
2077+
2078+
#### Day 10 Where
2079+
2080+
| <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- --> | <!-- -->
2081+
|-|-|-|-|-|-
2082+
| 0182 |[Duplicate Emails](src/main/kotlin/g0101_0200/s0182_duplicate_emails)| Easy | Database | 396 | 68.40
2083+
| 1050 |[Actors and Directors Who Cooperated At Least Three Times](src/main/kotlin/g1001_1100/s1050_actors_and_directors_who_cooperated_at_least_three_times)| Easy | LeetCode_Curated_SQL_70, Database | 629 | 81.02
2084+
| 1587 |[Bank Account Summary II](src/main/kotlin/g1501_1600/s1587_bank_account_summary_ii)| Easy | Database | 1582 | 52.96
2085+
| 1084 |[Sales Analysis III](src/main/kotlin/g1001_1100/s1084_sales_analysis_iii)| Easy | LeetCode_Curated_SQL_70, Database | 1881 | 79.36
2086+
20872087
## Algorithms
20882088

20892089
| # | Title | Difficulty | Tag | Time, ms | Time, %

‎src/main/kotlin/g3701_3800/s3729_count_distinct_subarrays_divisible_by_k_in_sorted_array/readme.md‎

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Original file line numberDiff line numberDiff line change
@@ -57,7 +57,7 @@ class Solution {
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if (i > 0 && x != nums[i - 1]) {
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var s = sum
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for (t in i - lastStart downTo 1) {
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cnt.merge((s % k).toInt(), 1) { a: Int?, b: Int? -> Integer.sum(a!!, b!!) }
60+
cnt.merge((s % k).toInt(), 1) { a: Int, b: Int -> Integer.sum(a, b) }
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s -= nums[i - 1].toLong()
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}
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lastStart = i

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