401-500

402. Remove K Digits413. Arithmetic Slices417. Pacific Atlantic Water Flow423. Reconstruct Original Digits from English449. Serialize and Deserialize BST450. Delete Node in a BST452. Minimum Number of Arrows to Burst Balloons456. 132 Pattern462. Minimum Moves to Equal Array Elements II473. Matchsticks to Square478. Generate Random Point in a Circle482. License Key Formatting496. Next Greater Element I