LeetCode Problems 400 - 499

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Problem Name	Difficulty	Solution Link
400. Nth Digit	Medium	View Solutions
401. Binary Watch	Easy	View Solutions
402. Remove K Digits	Medium	View Solutions
403. Frog Jump	Hard	View Solutions
404. Sum of Left Leaves	Easy	View Solutions
405. Convert a Number to Hexadecimal	Easy	View Solutions
406. Queue Reconstruction by Height	Medium	View Solutions
407. Trapping Rain Water II	Hard	View Solutions
408. Valid Word Abbreviation	Easy	View Solutions
409. Longest Palindrome	Easy	View Solutions
410. Split Array Largest Sum	Hard	View Solutions
411. Minimum Unique Word Abbreviation	Hard	View Solutions
412. Fizz Buzz	Easy	View Solutions
413. Arithmetic Slices	Medium	View Solutions
414. Third Maximum Number	Easy	View Solutions
415. Add Strings	Easy	View Solutions
416. Partition Equal Subset Sum	Medium	View Solutions
417. Pacific Atlantic Water Flow	Medium	View Solutions
418. Sentence Screen Fitting	Medium	View Solutions
419. Battleships in a Board	Medium	View Solutions
420. Strong Password Checker	Hard	View Solutions
421. Maximum XOR of Two Numbers in an Array	Medium	View Solutions
422. Valid Word Square	Easy	View Solutions
423. Reconstruct Original Digits from English	Medium	View Solutions
424. Longest Repeating Character Replacement	Medium	View Solutions
425. Word Squares	Hard	View Solutions
426. Convert Binary Search Tree to Sorted Doubly Linked List	Medium	View Solutions
427. Construct Quad Tree	Medium	View Solutions
428. Serialize and Deserialize N-ary Tree	Hard	View Solutions
429. N-ary Tree Level Order Traversal	Medium	View Solutions
430. Flatten a Multilevel Doubly Linked List	Medium	View Solutions
431. Encode N-ary Tree to Binary Tree	Hard	View Solutions
432. All Oone Data Structure	Hard	View Solutions
433. Minimum Genetic Mutation	Medium	View Solutions
434. Number of Segments in a String	Easy	View Solutions
435. Non-overlapping Intervals	Medium	View Solutions
436. Find Right Interval	Medium	View Solutions
437. Path Sum III	Medium	View Solutions
438. Find All Anagrams in a String	Medium	View Solutions
439. Ternary Expression Parser	Medium	View Solutions
440. K-th Smallest in Lexicographical Order	Hard	View Solutions
441. Arranging Coins	Easy	View Solutions
442. Find All Duplicates in an Array	Medium	View Solutions
443. String Compression	Medium	View Solutions
444. Sequence Reconstruction	Hard	View Solutions
445. Add Two Numbers II	Medium	View Solutions
446. Arithmetic Slices II - Subsequence	Hard	View Solutions
447. Number of Boomerangs	Medium	View Solutions
448. Find All Numbers Disappeared in an Array	Easy	View Solutions
449. Serialize and Deserialize BST	Medium	View Solutions
450. Delete Node in a BST	Medium	View Solutions
451. Sort Characters By Frequency	Medium	View Solutions
452. Minimum Number of Arrows to Burst Balloons	Medium	View Solutions
453. Minimum Moves to Equal Array Elements	Easy	View Solutions
454. 4Sum II	Medium	View Solutions
455. Assign Cookies	Easy	View Solutions
456. 132 Pattern	Medium	View Solutions
457. Circular Array Loop	Medium	View Solutions
458. Poor Pigs	Hard	View Solutions
459. Repeated Substring Pattern	Easy	View Solutions
460. LFU Cache	Hard	View Solutions
461. Hamming Distance	Easy	View Solutions
462. Minimum Moves to Equal Array Elements II	Medium	View Solutions
463. Island Perimeter	Easy	View Solutions
464. Can I Win	Medium	View Solutions
465. Optimal Account Balancing	Hard	View Solutions
466. Count The Repetitions	Hard	View Solutions
467. Unique Substrings in Wraparound String	Medium	View Solutions
468. Validate IP Address	Medium	View Solutions
469. Convex Polygon	Medium	View Solutions
470. Implement Rand10() Using Rand7()	Medium	View Solutions
471. Encode String with Shortest Length	Hard	View Solutions
472. Concatenated Words	Hard	View Solutions
473. Matchsticks to Square	Medium	View Solutions
474. Ones and Zeroes	Medium	View Solutions
475. Heaters	Medium	View Solutions
476. Number Complement	Easy	View Solutions
477. Total Hamming Distance	Medium	View Solutions
478. Generate Random Point in a Circle	Medium	View Solutions
479. Largest Palindrome Product	Hard	View Solutions
480. Sliding Window Median	Hard	View Solutions
481. Magical String	Medium	View Solutions
482. License Key Formatting	Easy	View Solutions
483. Smallest Good Base	Hard	View Solutions
484. Find Permutation	Medium	View Solutions
485. Max Consecutive Ones	Easy	View Solutions
486. Predict the Winner	Medium	View Solutions
487. Max Consecutive Ones II	Medium	View Solutions
488. Zuma Game	Hard	View Solutions
489. Robot Room Cleaner	Hard	View Solutions
490. The Maze	Medium	View Solutions
491. Increasing Subsequences	Medium	View Solutions
492. Construct the Rectangle	Easy	View Solutions
493. Reverse Pairs	Hard	View Solutions
494. Target Sum	Medium	View Solutions
495. Teemo Attacking	Medium	View Solutions
496. Next Greater Element I	Easy	View Solutions
497. Random Point in Non-overlapping Rectangles	Hard	View Solutions
498. Diagonal Traverse	Medium	View Solutions
499. The Maze III	Hard	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.