DSA & Coding Problems Explorer

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

8773 problems

#	Title	Topics	Acceptance	Pts	Difficulty
3251	MySQL WHERE salary > 150000 #15	MySQL — WHERE & filtering mysql coding-practice	—	30	Medium	Solve
3252	PostgreSQL ILIKE search #15	PostgreSQL — WHERE & filtering postgresql coding-practice	—	30	Medium	Solve
3253	Reduce product #15	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
3254	Reduce product #15	Node.js — Modules nodejs coding-practice	—	20	Easy	Solve
3255	Reduce product #15	React — Props react coding-practice	—	20	Easy	Solve
3256	T-SQL WHERE salary > 105000 #15	SQL Server — WHERE & filtering sqlserver coding-practice	—	20	Easy	Solve
3257	Array sum (10 elements) #16	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
3258	Filter category X #16	SQL — WHERE & filtering sql coding-practice	—	40	Hard	Solve
3259	MongoDB updates #16	MongoDB — Updates mongodb coding-practice	—	30	Medium	Solve
3260	MySQL WHERE salary > 155000 #16	MySQL — WHERE & filtering mysql coding-practice	—	40	Hard	Solve
3261	PostgreSQL ILIKE search #16	PostgreSQL — WHERE & filtering postgresql coding-practice	—	40	Hard	Solve
3262	Sum 1..5 #16	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
3263	Sum 1..5 #16	Node.js — Modules nodejs coding-practice	—	30	Medium	Solve
3264	Sum 1..5 #16	React — Props react coding-practice	—	30	Medium	Solve
3265	T-SQL WHERE salary > 107500 #16	SQL Server — WHERE & filtering sqlserver coding-practice	—	30	Medium	Solve
3266	Valid palindrome "interview" #16	DSA — Strings dsa coding-practice	—	20	Easy	Solve
3267	Array max (11 elements) #17	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
3268	Filter category X #17	SQL — WHERE & filtering sql coding-practice	—	30	Medium	Solve
3269	Filter evens #17	JavaScript — Arrays javascript coding-practice	—	40	Hard	Solve
3270	Filter evens #17	Node.js — Modules nodejs coding-practice	—	40	Hard	Solve
3271	Filter evens #17	React — Props react coding-practice	—	40	Hard	Solve
3272	Longest substring without repeat #17	DSA — Strings dsa coding-practice	—	30	Medium	Solve
3273	MongoDB updates #17	MongoDB — Updates mongodb coding-practice	—	30	Medium	Solve
3274	MySQL WHERE salary > 160000 #17	MySQL — WHERE & filtering mysql coding-practice	—	30	Medium	Solve
3275	PostgreSQL ILIKE search #17	PostgreSQL — WHERE & filtering postgresql coding-practice	—	30	Medium	Solve
3276	T-SQL WHERE salary > 110000 #17	SQL Server — WHERE & filtering sqlserver coding-practice	—	40	Hard	Solve
3277	Anagram check #18	DSA — Strings dsa coding-practice	—	20	Easy	Solve
3278	Filter category X #18	SQL — WHERE & filtering sql coding-practice	—	30	Medium	Solve
3279	Map squares #18	JavaScript — Arrays javascript coding-practice	—	30	Medium	Solve
3280	Map squares #18	Node.js — Modules nodejs coding-practice	—	30	Medium	Solve
3281	Map squares #18	React — Props react coding-practice	—	30	Medium	Solve
3282	MongoDB updates #18	MongoDB — Updates mongodb coding-practice	—	30	Medium	Solve
3283	MySQL WHERE salary > 165000 #18	MySQL — WHERE & filtering mysql coding-practice	—	30	Medium	Solve
3284	PostgreSQL ILIKE search #18	PostgreSQL — WHERE & filtering postgresql coding-practice	—	30	Medium	Solve
3285	Reverse array #18	C# Programs — Arrays csharp coding-practice	—	30	Medium	Solve
3286	T-SQL WHERE salary > 112500 #18	SQL Server — WHERE & filtering sqlserver coding-practice	—	30	Medium	Solve
3287	Filter category X #19	SQL — WHERE & filtering sql coding-practice	—	40	Hard	Solve
3288	Linear search 6 #19	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
3289	Max in set #19	JavaScript — Arrays javascript coding-practice	—	20	Easy	Solve
3290	Max in set #19	Node.js — Modules nodejs coding-practice	—	20	Easy	Solve
3291	Max in set #19	React — Props react coding-practice	—	20	Easy	Solve
3292	MongoDB updates #19	MongoDB — Updates mongodb coding-practice	—	30	Medium	Solve
3293	MySQL WHERE salary > 170000 #19	MySQL — WHERE & filtering mysql coding-practice	—	40	Hard	Solve
3294	PostgreSQL ILIKE search #19	PostgreSQL — WHERE & filtering postgresql coding-practice	—	40	Hard	Solve
3295	T-SQL WHERE salary > 115000 #19	SQL Server — WHERE & filtering sqlserver coding-practice	—	20	Easy	Solve
3296	Valid palindrome "toolliyo" #19	DSA — Strings dsa coding-practice	—	20	Easy	Solve
3297	Average array #20	C# Programs — Arrays csharp coding-practice	—	20	Easy	Solve
3298	Filter category X #20	SQL — WHERE & filtering sql coding-practice	—	30	Medium	Solve
3299	Longest substring without repeat #20	DSA — Strings dsa coding-practice	—	30	Medium	Solve
3300	MongoDB updates #20	MongoDB — Updates mongodb coding-practice	—	30	Medium	Solve

Problem of the day

Combination Sum II

Medium · +15 pts

Solve today

Weekly leaderboard

View all

1 Pratik Chopade 1 solved

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