While looking through some code today, I came across an interesting(unecessary?) method for setting a variable: Adding a logical AND to the value.
I'm doing an exercise which i'm no being able to solve. I need to get the maximum accumulated profit by buying and selling bitcoins. I have a function(A,Y) which receive an A = array of different prices during time and a Y = fee Restrictions:
I've searched through various Range TS proposals, including P0896, the one incorporating the ranges into C++20. It seems from my reading that the only requirement the Iterator concept makes in terms of dereferenceability is that *t be valid syntax that yields an object of some type.
I am just wondering and confused as too why my output is messed up. The code is below. I am a beginner so please excuse my lack of skill. Any help would be very much appreciated.
Consider below codeOutput of the program is I understand the first two but can't get my head around the last one. How does b.foo() print 5. B class will inherit the foo method. But shouldn't it print what b.x would print? What exactly is happening here?
I have a match expression that I would like to potentially return an error from. It seems that the compiler is not able to infer that the last case e is an Err(String) and requires the pattern to be explicit:
I have 2 dataframesdf1df2My expected outputI want to create new dataframe merging both with col and row wise. I tried to use merge() but it didn't worked
I want to split an array of strings into two arrays. However, when I push the strings into the new arrays, it should be alternating. So, if the array is:
What is the difference between let add1 x = x + 1 and let add2 x = x +1. The accidental removal of space changed the type of function from val add1 : x:int->int to val add2 : x:(int -> 'a) -> 'a
I was trying out the new dataclasses in Python 3.7The dataclass decorator can be passed arguments to control the dunder functions that are added to the class.