basic Coding Problems

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

457 problems in this topic

#	Title	Topics	Acceptance	Pts	Difficulty
351	PostgreSQL SELECT with LIMIT #48	PostgreSQL — SELECT basics postgresql coding-practice	—	30	Medium	Solve
352	Select price > 570 #48	SQL — SELECT basics sql coding-practice	—	30	Medium	Solve
353	T-SQL SELECT TOP 5 by salary #48	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
354	GCD of 13 and 20	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
355	Max in set #49	Basic JavaScript Programs javascript coding-practice	—	40	Hard	Solve
356	Max in set #49	Basic Node.js Programs nodejs coding-practice	—	40	Hard	Solve
357	MySQL SELECT top earners #49	MySQL — SELECT basics mysql coding-practice	—	40	Hard	Solve
358	PostgreSQL SELECT with LIMIT #49	PostgreSQL — SELECT basics postgresql coding-practice	—	40	Hard	Solve
359	Select price > 580 #49	SQL — SELECT basics sql coding-practice	—	40	Hard	Solve
360	T-SQL SELECT TOP 6 by salary #49	SQL Server — SELECT basics sqlserver coding-practice	—	40	Hard	Solve
361	MySQL SELECT top earners #50	MySQL — SELECT basics mysql coding-practice	—	30	Medium	Solve
362	PostgreSQL SELECT with LIMIT #50	PostgreSQL — SELECT basics postgresql coding-practice	—	30	Medium	Solve
363	Print numbers 1 to 14	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
364	Reduce product #50	Basic JavaScript Programs javascript coding-practice	—	30	Medium	Solve
365	Reduce product #50	Basic Node.js Programs nodejs coding-practice	—	30	Medium	Solve
366	Select price > 590 #50	SQL — SELECT basics sql coding-practice	—	30	Medium	Solve
367	T-SQL SELECT TOP 7 by salary #50	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
368	Sum of first 15 natural numbers	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
369	T-SQL SELECT TOP 3 by salary #51	SQL Server — SELECT basics sqlserver coding-practice	—	20	Easy	Solve
370	Factorial of 16	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
371	T-SQL SELECT TOP 4 by salary #52	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
372	Check if 5 is prime	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
373	T-SQL SELECT TOP 5 by salary #53	SQL Server — SELECT basics sqlserver coding-practice	—	40	Hard	Solve
374	First 10 Fibonacci numbers	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
375	T-SQL SELECT TOP 6 by salary #54	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
376	Count evens from 1 to 19	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
377	T-SQL SELECT TOP 7 by salary #55	SQL Server — SELECT basics sqlserver coding-practice	—	20	Easy	Solve
378	GCD of 20 and 27	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
379	T-SQL SELECT TOP 3 by salary #56	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
380	Print numbers 1 to 21	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
381	T-SQL SELECT TOP 4 by salary #57	SQL Server — SELECT basics sqlserver coding-practice	—	40	Hard	Solve
382	Sum of first 22 natural numbers	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
383	T-SQL SELECT TOP 5 by salary #58	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
384	Factorial of 23	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
385	T-SQL SELECT TOP 6 by salary #59	SQL Server — SELECT basics sqlserver coding-practice	—	20	Easy	Solve
386	Check if 29 is prime	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
387	T-SQL SELECT TOP 7 by salary #60	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
388	T-SQL SELECT TOP 3 by salary #61	SQL Server — SELECT basics sqlserver coding-practice	—	40	Hard	Solve
389	Count evens from 1 to 6	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
390	T-SQL SELECT TOP 4 by salary #62	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
391	GCD of 7 and 14	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
392	T-SQL SELECT TOP 5 by salary #63	SQL Server — SELECT basics sqlserver coding-practice	—	20	Easy	Solve
393	Print numbers 1 to 8	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
394	T-SQL SELECT TOP 6 by salary #64	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
395	Sum of first 9 natural numbers	Basic C# Programs csharp coding-practice	—	20	Easy	Solve
396	T-SQL SELECT TOP 7 by salary #65	SQL Server — SELECT basics sqlserver coding-practice	—	40	Hard	Solve
397	Factorial of 10	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
398	T-SQL SELECT TOP 3 by salary #66	SQL Server — SELECT basics sqlserver coding-practice	—	30	Medium	Solve
399	Check if 17 is prime	Basic C# Programs csharp coding-practice	—	30	Medium	Solve
400	T-SQL SELECT TOP 4 by salary #67	SQL Server — SELECT basics sqlserver coding-practice	—	20	Easy	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