minimum

来源： https://stackoverflow.com/questions/52500239/best-match-between-two-sets-of-points

问题 Intro: As far as I could search, this question wasn't asked in SO yet. This is an interview question. I am not even specifically looking for a code solution, any algorithm/pseudocode will work. The problem: Given an integer array int[] A and its size N , find 2 non-subsequent (can't be adjacent in the array) elements with minimal sum. Also the answer must not contain the first or last elements (index 0 and n-1 ). Also the solution should be in O(n) time and space complexity. E.g. when A = [5,

问题 This question already has answers here : Finding local maxima/minima with Numpy in a 1D numpy array (12 answers) Closed 14 days ago . Hi i have a python price array like above image: [100,120,135,150,190,200,180,150,200,220,300,280,250,270,320,380,400,390,380] i want to find last minimum of array like red circle shown on the image. result: 250 回答1: Find last relative minima: from scipy.signal import argrelmin values = [100,120,135,150,190,200,180,150,200,220,300,280,250,270,320,380,400,390

问题 If I have the facts in following format: person(name,age). How can I write a query to find the youngest person? I have tried using recursion but I kept getting stuck in infinite loops. So far from all the reading I done I found out I need to use the ! cut operator. Any help would be very much appreciated. 回答1: You definitely do not need to use the cut operator. I'm hard-pressed to imagine what that solution would look like. The simplest thing to do is to make a query of this sort: youngest

问题 Assume I have variables $a , $b , $c and $d which all hold numbers. I would like to get the smallest (largest) value. My typical XSLT 1.0 approach to this is <xsl:variable name="minimum"> <xsl:for-each select="$a | $b | $c | $d"> <xsl:sort select="." data-type="number" order="ascending" /> <xsl:if test="position()=1"><xsl:value-of select="." /></xsl:if> </xsl:for-each> </xsl:variable> However, my xslt 1.0 processor complains with runtime error: file stylesheet.xslt line 106 element for-each

问题 Maximum and Minimum values from a summed Formula problem Hello, I am currently using Crystal Reports 2008 which is getting its data from an Oracle database. I have looked into this at length and I have been unable to find the information I need. I have query about getting the Maximum and Minimum values from a given formula which totals 2 or more fields. A snapshot of the information I am using is: Field1 = dB1.Left_Serious Field2 = dB1.Left_Dangerous Field3 = @Tester Formula = @LeftTot Fields

问题 Maximum and Minimum values from a summed Formula problem Hello, I am currently using Crystal Reports 2008 which is getting its data from an Oracle database. I have looked into this at length and I have been unable to find the information I need. I have query about getting the Maximum and Minimum values from a given formula which totals 2 or more fields. A snapshot of the information I am using is: Field1 = dB1.Left_Serious Field2 = dB1.Left_Dangerous Field3 = @Tester Formula = @LeftTot Fields

问题 Suppose I have a 5-d matrix C. I use the following code to get a min matrix C3 (each element of C3 represents the minimum of dimension 1,2,3): [C1, I1] = min(C,[],1); [C2, I2] = min(C1, [], 2); [C3, I3] = min(C2, [], 3); The question is how to get the index of the minimum in terms of each dimension? For example consider this simpler case: C = [1,2;3,4] The minimum here is 1, its index in dimension 1 is 1 (first row) and in dimension 2 also 1 (first column). I know that changing the sequence

问题 I have a table named "rates" and it has two fields "date" and "rate". I like to get MIN and MAX rate values and their dates on which they occurred for each month. But I could not manage. SELECT date, MIN(rate) AS minRate, MAX(rate) AS maxRate, MONTH(date) AS monthName, YEAR(date) AS yearName FROM rates GROUP BY yearName ASC, monthName ASC Clarification: I like to get something like this: Months MIN mindate MAX maxdate Jan 1.234 2012-01-13 1.534 2012-01-24 Feb 1.165 2012-02-28 1.373 2012-02-11

问题 I have a data.frame with columns "a" and "b". I want to add columns called "high" and "low" that contain the highest and the lowest among columns a and b. Is there a way of doing this without looping over the lines in the dataframe? edit: this is for OHLC data, and so the high and low column should contain the highest and lowest element between a and b on the same line, and not among the whole columns. sorry if this is badly worded. 回答1: Sounds like you're looking for pmax and pmin ("parallel