Schwifty - 博客园

2019年3月28日

摘要： Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: begin to in 阅读全文

posted @ 2019-03-28 03:47 Schwifty 阅读(163) 评论(0) 推荐(0)

155. Min Stack

摘要： Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Remov 阅读全文

posted @ 2019-03-28 03:23 Schwifty 阅读(118) 评论(0) 推荐(0)

2019年3月26日

202. Happy Number

摘要： Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive intege 阅读全文

posted @ 2019-03-26 07:09 Schwifty 阅读(145) 评论(0) 推荐(0)

152. Maximum Product Subarray

摘要： Given an integer array nums, find the contiguous subarray within an array (containing at least one number) which has the largest product. Example 1: E 阅读全文

posted @ 2019-03-26 06:40 Schwifty 阅读(133) 评论(0) 推荐(0)

2019年3月21日

150. Evaluate Reverse Polish Notation

摘要： Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another e 阅读全文

posted @ 2019-03-21 08:20 Schwifty 阅读(113) 评论(0) 推荐(0)

138. Copy List with Random Pointer

摘要： 138. Copy List with Random Pointer Medium 1367395FavoriteShare 138. Copy List with Random Pointer Medium 1367395FavoriteShare Medium A linked list is 阅读全文

posted @ 2019-03-21 07:51 Schwifty 阅读(115) 评论(0) 推荐(0)

2019年3月16日

148. Sort List

摘要： Sort a linked list in O(n log n) time using constant space complexity. Example 1: Input: 4->2->1->3 Output: 1->2->3->4 Example 2: Input: -1->5->3->4-> 阅读全文

posted @ 2019-03-16 11:59 Schwifty 阅读(130) 评论(0) 推荐(0)

141. Linked List Cycle

摘要： Given a linked list, determine if it has a cycle in it. To represent a cycle in the given linked list, we use an integer pos which represents the posi 阅读全文

posted @ 2019-03-16 11:17 Schwifty 阅读(126) 评论(0) 推荐(0)

264. Ugly Number II

摘要： Write a program to find the n-th ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Example: Input: n = 10 Outpu 阅读全文

posted @ 2019-03-16 09:58 Schwifty 阅读(129) 评论(0) 推荐(0)

263. Ugly Number

摘要： Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Example 阅读全文

posted @ 2019-03-16 08:52 Schwifty 阅读(117) 评论(0) 推荐(0)

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