arrays Coding Problems

All C# Programs — Data Structures 167 C# Programs — Arrays 105 DSA — Two Pointers 105 DSA — Arrays 105 DSA — Trees 105 DSA — Dynamic Programming 105 DSA — Hashing 105 DSA — Binary Search 105 DSA — Graphs 105 DSA — Sorting 105 DSA — Strings 105 DSA — Stacks & Queues 105 C# Programs — Strings 105 C# Programs — LINQ 104 C# Programs — Collections 103 C# Programs — OOP 103 C# Programs — Sorting 103 SQL Server — DDL & constraints 101 SQL Server — CTEs 101 C# Programs — Interfaces 101 SQL Server — JOINs 101 SQL Server — WHERE & filtering 101 SQL Server — Window functions 101 SQL Server — Aggregates & GROUP BY 101 C# Programs — Inheritance 101 SQL Server — T-SQL procedures 101 SQL Server — Indexes & plans 101 SQL Server — SELECT basics 101

426 problems in this topic

#	Title	Topics	Acceptance	Pts	Difficulty
301	Map squares #13	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve
302	Reverse array #13	C# Programs — Arrays csharp coding-practice	—	30	Medium	Solve
303	Linear search 6 #14	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
304	Max in set #14	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
305	Average array #15	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
306	Reduce product #15	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
307	Array sum (10 elements) #16	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
308	Sum 1..5 #16	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
309	Array max (11 elements) #17	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
310	Filter evens #17	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve
311	Map squares #18	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
312	Reverse array #18	C# Programs — Arrays csharp coding-practice	—	30	Medium	Solve
313	Linear search 6 #19	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
314	Max in set #19	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
315	Average array #20	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
316	Reduce product #20	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
317	Array sum (5 elements) #21	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
318	Sum 1..10 #21	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve
319	Array max (6 elements) #22	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
320	Filter evens #22	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
321	Map squares #23	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
322	Reverse array #23	C# Programs — Arrays csharp coding-practice	—	30	Medium	Solve
323	Linear search 8 #24	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
324	Max in set #24	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
325	Average array #25	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
326	Reduce product #25	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve
327	Array sum (10 elements) #26	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
328	Sum 1..15 #26	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
329	Array max (11 elements) #27	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
330	Filter evens #27	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
331	Map squares #28	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
332	Reverse array #28	C# Programs — Arrays csharp coding-practice	—	30	Medium	Solve
333	Linear search 3 #29	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
334	Max in set #29	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve
335	Average array #30	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
336	Reduce product #30	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
337	Array sum (5 elements) #31	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
338	Sum 1..5 #31	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
339	Array max (6 elements) #32	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
340	Filter evens #32	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
341	Map squares #33	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve
342	Reverse array #33	C# Programs — Arrays csharp coding-practice	—	30	Medium	Solve
343	Linear search 2 #34	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
344	Max in set #34	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
345	Average array #35	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
346	Reduce product #35	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
347	Array sum (10 elements) #36	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
348	Sum 1..10 #36	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
349	Array max (11 elements) #37	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
350	Filter evens #37	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve

Problem of the day

Graph Valid Tree

Medium · +15 pts

Solve today

Weekly leaderboard

View all

Be the first to climb the board this week.

Company sheets

Toolliyo unique — practice by hiring company.

Google Amazon Microsoft Meta Apple Netflix TikTok LinkedIn Nvidia Uber

Browse all companies

Interview path

DSA Interview 150 All roadmaps 3,700+ Interview Q&A

Problems explorer