My HackerRank profile (https://www.hackerrank.com/raminorujov)

["HackerRank is one of the best online resources for the software engineering interview preparation. This repo contains my solutions to HackerRank problems.

Algorithms

#	Title	Solutions	Difficulty	Tag
1	Simple Array Sum	Solution	Easy	Array
2	Another problem	Solution	Easy	Array

SQL

#	Title	Solutions	Difficulty	Tag
1	Revising the Select Query 1	Solution	Easy	Select
2	Revising the Select Query 2	Solution	Easy	Select
3	Select All	Solution	Easy	Select
4	Select By ID	Solution	Easy	Select
5	Japanese Cities' Attributes	Solution	Easy	Select
6	Japanese Cities' Names	Solution	Easy	Select
7	Weather Observation Station 1	Solution	Easy	Select
8	Weather Observation Station 3	Solution	Easy	Select
9	Weather Observation Station 4	Solution	Easy	Select
10	Weather Observation Station 5	Solution	Easy	Select
11	Weather Observation Station 6	Solution	Easy	Select
12	Weather Observation Station 7	Solution	Easy	Select
13	Weather Observation Station 8	Solution	Easy	Select
14	Weather Observation Station 9	Solution	Easy	Select
15	Weather Observation Station 10	Solution	Easy	Select
16	Weather Observation Station 11	Solution	Easy	Select
17	Weather Observation Station 12	Solution	Easy	Select
18	More Than 75 Marks	Solution	Easy	Select
19	Employee Names	Solution	Easy	Select
20	Employee Salaries	Solution	Easy	Select
21	Type of Triangle	Solution	Easy	Select
22	The PADS	Solution	Medium	Advanced Select
23	Occupations	Solution	Medium	Advanced Select
24	Binary Tree Nodes	Solution	Medium	Advanced Select
25	New Companies	Solution	Medium	Advanced Select
26	Revising Aggregations - The Count Function	Solution	Easy	Aggregation
27	Revising Aggregations - The Sum Function	Solution	Easy	Aggregation
28	Revising Aggregations - The Average Function	Solution	Easy	Aggregation
29	Average Population	Solution	Easy	Aggregation
30	Japan Population	Solution	Easy	Aggregation
31	Population Density Difference	Solution	Easy	Aggregation
32	The Blunder	Solution	Easy	Aggregation
33	Top Earners	Solution	Easy	Aggregation
34	Weather Observation Station 2	Solution	Easy	Aggregation
35	Weather Observation Station 13	Solution	Easy	Aggregation
36	Weather Observation Station 14	Solution	Easy	Aggregation
37	Weather Observation Station 15	Solution	Easy	Aggregation
38	Weather Observation Station 16	Solution	Easy	Aggregation
39	Weather Observation Station 17	Solution	Easy	Aggregation
40	Weather Observation Station 18	Solution	Medium	Aggregation
41	Weather Observation Station 19	Solution	Medium	Aggregation
42	Weather Observation Station 20	Solution	Medium	Aggregation
43	Asian Population	Solution	Easy	Basic Join
44	African Cities	Solution	Easy	Basic Join
45	Average Population of Each Continent	Solution	Easy	Basic Join
46	The Report	Solution	Medium	Basic Join
47	Top Competitors	Solution	Medium	Basic Join
48	Ollivander's Inventory	Solution	Medium	Basic Join
49	Challenges	Solution	Medium	Basic Join
50	Contest Leaderboard	Solution	Medium	Basic Join
51	SQL Project Planning	Solution	Medium	Advanced Join
52	Placements	Solution	Medium	Advanced Join
53	15 Days of Learning SQL	Solution	Hard	Advanced Join
54	Draw The Triangle 1	Solution	Easy	Alternative Queries
55	Draw The Triangle 2	Solution	Easy	Alternative Queries
56	Symmetric Ppairs	Solution	Medium	Advanced Join
57	Interviews	Solution	Hard	Advanced Join
58	Print Prime Numbers	Solution	Medium	Alternative Queries