dab | Simple DBMS-agnostic C library for database access

I have a text file of about 7000 sentences. Every sentence is in a new line. The sample format of my text file's data is given below. I want to change the format and clean the data using python.

(input.txt)

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I have a numerical routine that I need to run to solve a certain equation, which contains a few nested four loops. I initially wrote this routine into Python, using numba.jit to achieve an acceptable performance. For large system sizes however, this method becomes quite slow, so I have been rewriting the routine into Fortran hoping to achieve a speed-up. However I have found that my Fortran version is much slower than the first version in Python, by a factor of 2-3.

I believe the bottleneck is a linear interpolation function that is called at each innermost loop. In the Python implementation I use numpy.interp, which seems to be pretty fast when combined with numba.jit. In Fortran I wrote my own interpolation function, which reads,

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I've got a problem with one exercise from SQL.

"For each year, find the student with the highest average grade."

I need to get from my query informations, where there will be osoba.imie, osoba.nazwisko, YEAR(student.datarekrutacji) AND MAX(AVG(ocena.ocena)) - so I need to know, what was the max average OCENA.OCENA for each YEAR, and who (OSOBA.IMIE & OSOBA.NAZWISKO) got that max.

I was trying many things, but best I could get was:

*1 situation where I have grouped YEARS with best AVG(OCENA), here is a code:

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I have the following Fortran code (modified on top of many answers from stack overflow..)

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I can't get my head around the calculation of atan2 and placing a geom_arc on the intended side.

Here's some dummy data with four pairs of points ABC. I'd like to draw four arcs, each on the side with the smaller angle and print the angle degrees. Calculating angle dregrees works, but I'd need 1) some switch to correct the atan2 and/or 2) another switch to put the arc on the intended side. Just exchanging start and end has no effect.

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I have a vector of characters 'A', 'B', 'C', 'D' and would like to loop n times to get all possible combinations (4^n) of the characters. How do I write a function that will perform this given input n?

For example, if n=2, my loop will look something like this:

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I have 2 table:

Table A:

id Name Age Height 01 Pauls 22 170 02 Sam 20 175 03 Mike 20 175 04 Jame 23 180

id Name Age Height 01 Pauls 20 170 02 Sam 21 180

Table B:

id Height Age 01 175 23 02 190 21

The question here is how could I get this output by join 2 table A & B by id and get output table using Linq in C# OutputTable:

id Name Age Height 01 Pauls 23(value in table B) 175 (value in table B) 02 Sam 21(value in table B) 190 (value in table B)

Edit: I'm using these line of code but the output is not what I expected, I'm not used to work with linq so please tell me where's my mistake:

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I have a list: list = ['abd','def','gab','dab']

And I want to check if a certain element say x = 'gab' is equal to an element in the list.

If so, then I want to do something, otherwise I want to pass. And at the end of the for loop, if x was not equal to any element in list, then I want to run some batch of code.

Here is my code:

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I am trying to execute a code using the gfortran compiler. In order to compile, I use :

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