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leetcode542 01 Matrix
1 """ 2 Given a matrix consists of 0 and 1, find the distance of the nearest 0 for each cell. 3 The distance between two adjacent cells is 1. 4 Exampl ...
分类:其他好文   时间:2020-02-15 11:50:37    阅读次数:74
Pandas - A value is trying to be set on a copy of a slice from a DataFrame(转)
转自:https://blog.csdn.net/qq_42711381/article/details/90451301 由于刚好也遇到这个问题,记录下来 使用的DataFrame的 当使用 frame2['year']['two'] = 10000, 即df名[列名][行名]的方式去赋值就会报错... ...
分类:其他好文   时间:2020-02-14 12:31:36    阅读次数:75
leetcode236 Lowest Common Ancestor of a Binary Tree
1 """ 2 Given a binary tree, find the lowest common ancestor (LCA) of two given nodes in the tree. 3 According to the definition of LCA on Wikipedia: ...
分类:其他好文   时间:2020-02-13 22:33:56    阅读次数:67
21. Merge Two Sorted Lists
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: ...
分类:其他好文   时间:2020-02-13 20:46:21    阅读次数:72
[LC] 373. Find K Pairs with Smallest Sums
You are given two integer arrays nums1 and nums2 sorted in ascending order and an integer k. Define a pair (u,v) which consists of one element from th ...
分类:其他好文   时间:2020-02-13 13:22:48    阅读次数:67
LeetCode 1117. Building H2O
原题链接在这里:https://leetcode.com/problems/building-h2o/ 题目: There are two kinds of threads, oxygen and hydrogen. Your goal is to group these threads to fo ...
分类:其他好文   时间:2020-02-13 10:02:55    阅读次数:76
[LeetCode] 70. Climbing Stairs
爬楼梯。题意是给一个数字n代表楼梯的高度,你可以每次爬一步或者两步,求有多少种不同的爬法。例子, Example 1: Input: 2 Output: 2 Explanation: There are two ways to climb to the top. 1. 1 step + 1 step ...
分类:其他好文   时间:2020-02-13 09:56:32    阅读次数:70
1343. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold
Given an array of integers arr and two integers k and threshold. Return the number of sub-arrays of size k and average greater than or equal to thresh ...
分类:其他好文   时间:2020-02-13 09:42:29    阅读次数:54
1344. Angle Between Hands of a Clock
Given two numbers, hour and minutes. Return the smaller angle (in sexagesimal units) formed between the hour and the minute hand. Example 1: Input: ho ...
分类:其他好文   时间:2020-02-13 09:30:42    阅读次数:57
LeetCode | 0088. Merge Sorted Array合并两个有序数组【Python】
LeetCode 0088. Merge Sorted Array合并两个有序数组【Easy】【Python】【双指针】 题目 "英文题目链接" Given two sorted integer arrays nums1 and nums2 , merge nums2 into nums1 as o ...
分类:编程语言   时间:2020-02-12 23:50:19    阅读次数:89
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