seyjs - 博客园

2019年8月22日

【leetcode】114. Flatten Binary Tree to Linked List

摘要：题目如下： Given a binary tree, flatten it to a linked list in-place. For example, given the following tree: The flattened tree should look like: 解题思路：递归，从阅读全文

posted @ 2019-08-22 17:30 seyjs 阅读(192) 评论(0) 推荐(0)

【leetcode】227. Basic Calculator II

摘要：题目如下： Implement a basic calculator to evaluate a simple expression string. The expression string contains only non-negativeintegers, +, -, *, / operat 阅读全文

posted @ 2019-08-22 16:18 seyjs 阅读(170) 评论(0) 推荐(0)

【leetcode】410. Split Array Largest Sum

摘要：题目如下： Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an 阅读全文

posted @ 2019-08-22 14:40 seyjs 阅读(160) 评论(0) 推荐(0)

2019年8月20日

【leetcode】1124. Longest Well-Performing Interval

摘要：题目如下： We are given hours, a list of the number of hours worked per day for a given employee. A day is considered to be a tiring day if and only if the 阅读全文

posted @ 2019-08-20 21:43 seyjs 阅读(641) 评论(0) 推荐(0)

【leetcode】1144. Decrease Elements To Make Array Zigzag

摘要：题目如下： Given an array nums of integers, a move consists of choosing any element and decreasing it by 1. An array A is a zigzag array if either: Every e 阅读全文

posted @ 2019-08-20 15:57 seyjs 阅读(459) 评论(0) 推荐(0)

【hackerrank】Type of Triangle

摘要：题目如下： Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. Output one of the following statements fo 阅读全文

posted @ 2019-08-20 13:47 seyjs 阅读(457) 评论(0) 推荐(0)

【hackerrank】Weather Observation Station 18

摘要：题目如下： Consider and to be two points on a 2D plane. happens to equal the minimum value in Northern Latitude (LAT_N in STATION). happens to equal the mi 阅读全文

posted @ 2019-08-20 10:30 seyjs 阅读(280) 评论(0) 推荐(0)

【hackerrank】Placements

摘要：题目如下： You are given three tables: Students, Friends and Packages. Students contains two columns: ID and Name. Friends contains two columns: ID and Fri 阅读全文

posted @ 2019-08-20 10:22 seyjs 阅读(289) 评论(0) 推荐(0)

2019年8月19日

【leetcode】1155. Number of Dice Rolls With Target Sum

摘要：题目如下： You have d dice, and each die has f faces numbered 1, 2, ..., f. Return the number of possible ways (out of fd total ways) modulo 10^9 + 7 to ro 阅读全文

posted @ 2019-08-19 13:59 seyjs 阅读(937) 评论(0) 推荐(0)

【leetcode】1156. Swap For Longest Repeated Character Substring

摘要：题目如下： Given a string text, we are allowed to swap two of the characters in the string. Find the length of the longest substring with repeated characte 阅读全文

posted @ 2019-08-19 13:54 seyjs 阅读(701) 评论(0) 推荐(0)

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