local minimum or global minimum ,in machine leaning it is a question to discuss在数学中，极大值与极小值（又被称为极值）是指在一个域上函数取得最大值（或最小值）的点的函数值。而使函数取得极值的点(的横坐标)被称作极值点。这个域既可以是一个邻域，又可以是整个函数域（这时极值称为最值）。局部最大值：如果存在一个ε > 0，使的所有满足|x-x*| < ε的x都有f(x*) ≥ f(x)我们就把点x*称为一个函数f的局部最大值。从函数图像上看，局部最大值就像是山顶。局部最小值： 如果存在一个ε > 0，使
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2011-09-09 16:26:00
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【链接】h在这里写链接【题意】给两个数字a,b,每次操作可以把a+1a+1,或把a∗k问至少多少次操作可以使得a=b.1using namespace std;long long a, b, k,ans;int main() { ios::sync_with_stdio(0), cin.tie...
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2017-10-04 18:44:00
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Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.Note: You can only move either down or right at any
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2013-12-07 00:09:36
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"D Minimum Euler Cycle" 首先最重要的是构造规则：当$n=5$： $(1 2 1 3 1 4 1 5 (2 3 2 4 2 5 (3 4 3 5 (4 5 ()))) 1
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2022-11-03 15:24:33
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The Minimum LengthTime Limit:1000MS Memory Limit:131072KB 64bit IO Format:%lld & %lluSubmit StatusDescriptionThere is a string A. The length of A is less than 1,000,000. I re
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2023-03-03 13:08:42
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numpy.minimumnumpy.minimum(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj]) = <ufunc 'minimum'>Element-wise minimum of array e...
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2021-08-12 22:23:28
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Given an integer array, adjust each integers so that the difference of every adjacent integers are not greater than a given number target. If the arra
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2016-06-29 10:57:00
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Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).For example,S="ADOBECODEBANC"T="ABC"Minimum window is"BANC".Note:If there is no such window in S that covers all characters in T, return the emtpy
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2013-11-07 10:09:00
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Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).For example,S="ADOBECODEBA...
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2014-11-30 09:45:00
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Given an integer array, adjust each integers so that the difference of every adjcent integers are not greater than a given number target.If the array ...
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2015-02-23 14:07:00
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Problem Description The inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i < j and ai > aj. Fo
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2016-03-10 10:43:00
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题目 Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its pat
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2017-08-10 18:33:00
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这题还是很有难度的。通过数组记录元素的长度，将目标数组与其进行比较，再对相应的子串进行缩小，并记录相应的起点与长度。 提取包含子串的最小窗口，可以是无序的。 1、建立一个256个大小的ASCII数组，统计子串中每个字符出现的次数； 2、用两个指针，一个指针表示窗口的起始位置，一个不断后移直至这个窗口
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2022-01-18 09:54:48
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文章目录Minimum Cost For Tickets题目描述算法描述C++实现Scala实现Minimum Cost For Tickets题目
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2022-08-01 11:56:26
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题目描述Problem DescriptionThere is a graph of n vertices which are indexed from 1 to n. For any pair of different verti
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2022-10-28 10:16:50
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Minimum Path SumGiven amxngrid filled with non-negative numbers, find a path from top left to bottom right whichminimizesthe sum of all numbers along ...
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2021-08-07 11:36:30
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这个问题出现在oracle使用 CPHP 这个函数中； 下面是官方解释：https://cx.rightnow.com/app/answers/detail/a_id/11230/~/min-length-not-met%3A-value-0-%3C-1-minimum-length Why do ...
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2021-07-27 23:54:00
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The inversion number of a given number sequence a1, a2, …, an is the number of pairs (ai, aj) that satisfy i < j and ai > aj.For a given sequence of numbers a1, a2, …, an, if we move the first ...
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2021-07-09 13:57:46
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Given an array of integers, find the subarray with smallest sum.Return the sum of the subarray.Have you met this question in a real interview? YesExam...
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2016-01-09 06:09:00
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Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).
For example,S = "ADOBECODEBANC"T = "ABC"
Minimum window is "BANC".
Note:
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2017-04-12 15:26:00
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