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C# Interview Prep

53 problems

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Category

All Array Backtracking Binary Search Dynamic Programming Graph Greedy Hash Map Heap Math Sliding Window Sorting Stack String Two Pointers

Status:

All ✓ Solved Not solved

Difficulty:

Showing 53 problems

1Two SumArrayeasy
2Contains DuplicateArrayeasy
3Best Time to Buy and Sell StockArrayeasy
4Missing NumberArrayeasy
5Single NumberArrayeasy
6Majority ElementArrayeasy
7Plus OneArrayeasy
8Max Consecutive OnesArrayeasy
9Remove Duplicates from Sorted ArrayArrayeasy
10Find All Duplicates in an ArrayArrayeasy
11Three SumArraymedium
12Maximum SubarrayArraymedium
13Product of Array Except SelfArraymedium
14Trapping Rain WaterArrayhard
15Letter Combinations of a Phone NumberBacktrackingmedium
16N-Queens IIBacktrackinghard
17Find Minimum in Rotated Sorted ArrayBinary Searchmedium
18Search in Rotated Sorted ArrayBinary Searchmedium
19Median of Two Sorted ArraysBinary Searchhard
20Climbing StairsDynamic Programmingeasy
21Fibonacci NumberDynamic Programmingeasy
22House RobberDynamic Programmingmedium
23Coin ChangeDynamic Programmingmedium
24Maximum Product SubarrayDynamic Programmingmedium
25Unique PathsDynamic Programmingmedium
26Decode WaysDynamic Programmingmedium
27Longest Increasing SubsequenceDynamic Programmingmedium
28Word BreakDynamic Programminghard
29Edit DistanceDynamic Programminghard
30Regular Expression MatchingDynamic Programminghard
31Number of IslandsGraphmedium
32Jump GameGreedymedium
33Task SchedulerGreedymedium
34First Unique Character in a StringHash Mapeasy
35Top K Frequent ElementsHash Mapmedium

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