Keep Learning

摘要： package LeetCode_138 /** * 138. Copy List with Random Pointer * https://leetcode.com/problems/copy-list-with-random-pointer/description/ * * A linked 阅读全文

摘要： package LeetCode_380 /** * 380. Insert Delete GetRandom O(1) * https://leetcode.com/problems/insert-delete-getrandom-o1/description/ * Design a data s 阅读全文

摘要： package LeetCode_681 /** * 681. Next Closest Time * (Prime) * https://www.lintcode.com/problem/next-closest-time/description * * Given a time represen 阅读全文

摘要： package LeetCode_323 import java.util.* import kotlin.collections.ArrayList import kotlin.collections.HashMap /** * 323. Number of Connected Component 阅读全文

摘要： package LeetCode_680 /** * 680. Valid Palindrome II * https://leetcode.com/problems/delete-operation-for-two-strings/description/ * Given a non-empty 阅读全文

摘要： package LeetCode_523 /** * 523. Continuous Subarray Sum * https://leetcode.com/problems/continuous-subarray-sum/description/ * * Given a list of non-n 阅读全文

摘要： package LeetCode_901 import java.util.* /** * 901. Online Stock Span * https://leetcode.com/problems/online-stock-span/description/ * * Write a class 阅读全文

摘要： package LeetCode_547 import java.util.* /** * 547. Friend Circles * https://leetcode.com/problems/friend-circles/description/ * * There are N students 阅读全文

摘要： package LeetCode_162 /** * 162. Find Peak Element * https://leetcode.com/problems/find-peak-element/description/ * * A peak element is an element that 阅读全文

摘要： package LeetCode_1008 /** * 1008. Construct Binary Search Tree from Preorder Traversal * https://leetcode.com/problems/construct-binary-search-tree-fr 阅读全文