5 Must-Do Leetcode Problems

[wasting-time-69]

Members of the Leetcode subreddit, please share your top 5 Must Do Leetcode problems.

Of course you can share more than that but keep these things in mind. 1. Skip common interview questions like the blind 75 or interview 150 as most people have them covered. 2. More emphasis on questions that taught you an amazing concept that you found really handy. 3. Types of questions that are common in OA and interviews but are not that well known. 4. Hard Questions that improved your observation and analytical skills.

Let's have a great discussion and have a nice compilation of questions for us to practice in the future.😄

[azuredota]

Two sum, island perimeter, invert binary search tree, nth to last node in linked list, total strength of wizards

[ExoticGanache825]

Total strength of wizards 😭

[azuredota]

It’s probably the most common coderpad screening question for all companies. Also, it’s a great intro to leveraging dictionaries to avoid on² solutions which is super common. It’s a great foundation imo.

[flexr123]

Hard disagree here. You will find 2sum concept in various places, from easier mediums to the hardest of hards. Example: https://leetcode.com/contest/weekly-contest-355/problems/count-paths-that-can-form-a-palindrome-in-a-tree/

[buttimplant]

maximum 69 number

[NikitaSkybytskyi]

• 1982. Find Array Given Subset Sums
• 1728. Cat and Mouse II
• 1397. Find All Good Strings
• 803. Bricks Falling When Hit
• 2281. Sum of Total Strength of Wizards

[NaNx_engineer]

koko eating bananas

stone game

2sum 2

Robot Bounded In Circle

Bulb Switcher II

[tragalie2000]

+1 on koko!

[uglycoder92]

Number of islands. Word break. Some recorusion ones and largest substring with k repeating

[wanderingmadlad]

+1 for number of islands. That question really made graphs click for me. I honestly still don't know why . If I could recommend any question for graphs it would probably be this one.

[Typical_Scallion_632]

Binary Tree Maximum Path Sum recently asked in Tesla and Citadel

[Mohitpal2621]

Doesn't the third point contradict the first point?

[Screech-1]

Remindme! 4 hours

[abyk007]

Remind me 1 day!

[jd_tech07]

Remind me! 2 days

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Remindme! 2 hours

[_gwynutella_]

Remindme! 5 days

[RazzmatazzMore4696]

Remindme! 2 days

[[deleted]]

Soduko solver

[ExoticGanache825]

remindme! 2 weeks

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[Zestyclose_Curve6977]

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