LeetCode Problems 300 - 399

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Problem Name	Difficulty	Solution Link
300. Longest Increasing Subsequence	Medium	View Solutions
301. Remove Invalid Parentheses	Hard	View Solutions
302. Smallest Rectangle Enclosing Black Pixels	Medium	View Solutions
303. Range Sum Query - Immutable	Easy	View Solutions
304. Range Sum Query 2D - Immutable	Medium	View Solutions
305. number-of-islands-ii	Medium	View Solutions
306. Additive Number	Medium	View Solutions
307. Range Sum Query - Mutable	Medium	View Solutions
308. range-sum-query-2d-mutable	Easy	View Solutions
309. Best Time to Buy and Sell Stock with Cooldown	Hard	View Solutions
310. Minimum Height Trees	Medium	View Solutions
311. sparse-matrix-multiplication	Medium	View Solutions
312. Burst Balloons	Hard	View Solutions
313. Super Ugly Number	Medium	View Solutions
314. binary-tree-vertical-order-traversal	Medium	View Solutions
315. Count of Smaller Numbers After Self	Hard	View Solutions
316. Remove Duplicate Letters	Medium	View Solutions
317. shortest-distance-from-all-buildings	Medium	View Solutions
318. Maximum Product of Word Lengths	Medium	View Solutions
319. Bulb Switcher	Easy	View Solutions
320. generalized-abbreviation	Medium	View Solutions
321. Create Maximum Number	Hard	View Solutions
322. Coin Change	Medium	View Solutions
323. number-of-connected-components-in-an-undirected-graph	Medium	View Solutions
324. Wiggle Sort II	Medium	View Solutions
325. maximum-size-subarray-sum-equals-k	Medium	View Solutions
326. Power of Three	Easy	View Solutions
327. Count of Range Sum	Hard	View Solutions
328. Odd Even Linked List	Medium	View Solutions
329. Longest Increasing Path in a Matrix	Hard	View Solutions
330. Patching Array	Hard	View Solutions
331. Verify Preorder Serialization of a Binary Tree	Medium	View Solutions
332. Reconstruct Itinerary	Hard	View Solutions
333. largest-bst-subtree	Medium	View Solutions
334. Increasing Triplet Subsequence	Medium	View Solutions
335. Self Crossing	Hard	View Solutions
336. Palindrome Pairs	Hard	View Solutions
337. House Robber III	Medium	View Solutions
338. Counting Bits	Easy	View Solutions
339. nested-list-weight-sum	Medium	View Solutions
340. longest-substring-with-at-most-k-distinct-characters	Medium	View Solutions
341. Flatten Nested List Iterator	Medium	View Solutions
342. Power of Four	Easy	View Solutions
343. Integer Break	Medium	View Solutions
344. Reverse String	Easy	View Solutions
345. Reverse Vowels of a String	Easy	View Solutions
346. moving-average-from-data-stream	Medium	View Solutions
347. Top K Frequent Elements	Medium	View Solutions
348. design-tic-tac-toe	Medium	View Solutions
349. Intersection of Two Arrays	Easy	View Solutions
350. Intersection of Two Arrays II	Easy	View Solutions
351. android-unlock-patterns	Hard	View Solutions
352. Data Stream as Disjoint Intervals	Hard	View Solutions
353. design-snake-game	Medium	View Solutions
354. Russian Doll Envelopes	Hard	View Solutions
355. Design Twitter	Medium	View Solutions
356. line-reflection	Hard	View Solutions
357. Count Numbers with Unique Digits	Medium	View Solutions
358.rearrange-string-k-distance-apart	Medium	View Solutions
359. logger-rate-limiter	Medium	View Solutions
360. sort-transformed-arrayt	Medium	View Solutions
361. bomb-enemy	Medium	View Solutions
362. design-hit-counter	Medium	View Solutions
363. Max Sum of Rectangle No Larger Than K	Hard	View Solutions
364. nested-list-weight-sum-ii	Hard	View Solutions
365. Water and Jug Problem	Medium	View Solutions
366. find-leaves-of-binary-tree	Medium	View Solutions
367. Valid Perfect Square	Easy	View Solutions
368. Largest Divisible Subset	Medium	View Solutions
369. plus-one-linked-list	Medium	View Solutions
370. range-addition	Medium	View Solutions
371. Sum of Two Integers	Medium	View Solutions
372. Super Pow	Medium	View Solutions
373. Find K Pairs with Smallest Sums	Medium	View Solutions
374. Guess Number Higher or Lower	Easy	View Solutions
375. Guess Number Higher or Lower II	Medium	View Solutions
376. Wiggle Subsequence	Medium	View Solutions
377. Combination Sum IV	Medium	View Solutions
378. Kth Smallest Element in a Sorted Matrix	Medium	View Solutions
379. design-phone-directory	Medium	View Solutions
380. Insert Delete GetRandom O(1)	Medium	View Solutions
381. Insert Delete GetRandom O(1) - Duplicates allowed	Hard	View Solutions
382. Linked List Random Node	Medium	View Solutions
383. Ransom Note	Easy	View Solutions
384. Shuffle an Array	Medium	View Solutions
385. Mini Parser	Medium	View Solutions
386. Lexicographical Numbers	Medium	View Solutions
387. First Unique Character in a String	Easy	View Solutions
388. Longest Absolute File Path	Medium	View Solutions
389. Find the Difference	Easy	View Solutions
390. Elimination Game	Medium	View Solutions
391. Perfect Rectangle	Hard	View Solutions
392. Is Subsequence	Easy	View Solutions
393. UTF-8 Validation	Medium	View Solutions
394. Decode String	Medium	View Solutions
395. Longest Substring with At Least K Repeating Characters	Medium	View Solutions
396. Rotate Function	Medium	View Solutions
397. Integer Replacement	Medium	View Solutions
399. Random Pick Index	Medium	View Solutions

Now, you can see the list of problems in a table format. You can click on the problem link to view the problem on the LeetCode website. You can also click on the solution link to view the solution of the problem.