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【数组】747. 至少是其他数字两倍的最大数
题目: 解答: 设置 one、two 表示最大值和第二大值的数字; 设置 oneIndex 表示最大值的索引; 通过 for 遍历 nums; 遍历 nums 过程中:如果这个数 nums[i] 比最大值还大,那么替换掉 two、one、oneIndex;如果这个数 nums[i] 比第二大值还大, ...
分类:编程语言   时间:2020-05-04 19:17:28    阅读次数:75
numpy
安装 使用pip安装numpy pip install numpy 数组的创建 np.array创建ndarray对象 np.arange创建ndarray对象 随机数创建ndarray对象 ndarray对象 常用的 (1) ndim (2) shape (3) size (3) itemsize ...
分类:其他好文   时间:2020-05-04 17:34:25    阅读次数:46
原生JS实现简单的汇率转换问题
html代码 css代码 JavaScript代码 javascript // 获取货币1对象 let currencyEl_one = document.getElementById("currency one"); // 获取货币2对象 let currencyEl_two = document ...
分类:Web程序   时间:2020-05-04 00:43:15    阅读次数:70
矿大OJ 1768.Power Strings.
题目描述 Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of co ...
分类:其他好文   时间:2020-05-03 18:40:49    阅读次数:162
LeetCode 1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit Given an array of integers nums and an integer limit, return the size ...
分类:其他好文   时间:2020-05-03 14:56:30    阅读次数:60
数据可视化之DAX篇(二十八)Power BI时间序列分析用到的度量值,一次全给你
https://zhuanlan.zhihu.com/p/88528732 在各种经营分析报告中,我们常常会看到YTD,YOY这样的统计指标,这样的数据计算并不难,尤其是在PowerBI中,因为有时间智能函数的帮助,大大简化了这些计算,从而快速满足定期的报告需求。 下面就给你列出这些常用统计数据的度 ...
分类:其他好文   时间:2020-05-03 13:03:32    阅读次数:100
Reverse order pairs
In a sequence of numbers,we can find some number pairs that conform to the rule below: Assuming that there exist two numbers,N and M and it's position ...
分类:其他好文   时间:2020-05-02 18:46:09    阅读次数:60
1145 Hashing - Average Search Time (25分)
The task of this problem is simple: insert a sequence of distinct positive integers into a hash table first. Then try to find another sequence of inte ...
分类:其他好文   时间:2020-05-02 15:11:59    阅读次数:52
1144 The Missing Number (20分)
Given N integers, you are supposed to find the smallest positive integer that is NOT in the given list. Input Specification: Each input file contains ...
分类:其他好文   时间:2020-05-02 14:56:53    阅读次数:58
1143 Lowest Common Ancestor (30分)
The lowest common ancestor (LCA) of two nodes U and V in a tree is the deepest node that has both U and V as descendants. A binary search tree (BST) i ...
分类:其他好文   时间:2020-05-02 14:54:12    阅读次数:50
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