Make your practice count.Sign in to track completed questions across devices. Everything is free to browse.

Interview question tracker

Tinkoff SDE 2

The 20 highest-frequency questions from all time. Finish the strongest signals first.

One question at a time.

Top questions 20

Done	Question	LeetCode
Mark Find First and Last Position of Element in Sorted Array completed	Find First and Last Position of Element in Sorted Array	Solve
Mark Two Sum completed	Two Sum	Solve
Mark Decode String completed	Decode String	Solve
Mark Form Smallest Number From Two Digit Arrays completed	Form Smallest Number From Two Digit Arrays	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark Minimum Difference Between Highest and Lowest of K Scores completed	Minimum Difference Between Highest and Lowest of K Scores	Solve
Mark Min Stack completed	Min Stack	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark Search in Rotated Sorted Array completed	Search in Rotated Sorted Array	Solve
Mark Event Emitter completed	Event Emitter	Solve
Mark Find the Longest Balanced Substring of a Binary String completed	Find the Longest Balanced Substring of a Binary String	Solve
Mark Is Subsequence completed	Is Subsequence	Solve
Mark Remove Nth Node From End of List completed	Remove Nth Node From End of List	Solve
Mark Simplify Path completed	Simplify Path	Solve
Mark Battleships in a Board completed	Battleships in a Board	Solve
Mark Find All Numbers Disappeared in an Array completed	Find All Numbers Disappeared in an Array	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark Roman to Integer completed	Roman to Integer	Solve
Mark String Compression completed	String Compression	Solve
Mark Summary Ranges completed	Summary Ranges	Solve