[Solved] One line recursive loop in python

The list comprehension at the heart of this function is building up an implicit list that ultimately gets returned. We can unwind the function, remove the comprehension, and use an explicit list: def combine(n, k): “”” Given two integers n and k, return all possible combinations of k numbers out of 1 … n. “”” … Read more

[Solved] How to create multiple data frames from a huge data frame using a loop? [closed]

given that your data frame is named veryVeryVERYLargeDF lapply(colnames(veryVeryVERYLargeDF)[2:ncol(veryVeryVERYLargeDF)], function(nameOFColumnInveryVeryVERYLargeDF) cbind(veryVeryVERYLargeDF$ID, veryVeryVERYLargeDF[,nameOFColumnInveryVeryVERYLargeDF])) that will give you a list of somewhatSmallerDFs, where each somewhatSmallerDF is simply the ID column from veryVeryVERYLargeDF and one of the other columns from veryVeryVERYLargeDF 2 solved How to create multiple data frames from a huge data frame using a loop? [closed]

[Solved] While loop inside of for loop [closed]

There’s nothing wrong with having a while loop inside a for loop. To demonstrate: i = 0 kebab = [“chicken”,”garlic”,”cheese”,”tomato”,”lettuce”,”chilli”] print “Kebabs are so good, this is what mine has:” excitement_over_kebab = 1 for ingredients in kebab: while excitement_over_kebab == 1: print kebab[i] i+=1 if i == 6: print “Enough talk, my lunch break is … Read more

[Solved] How for loop works?

Here is an explanation of everything happening in the for loop // keeps the for loop going while x is less than numbers.length which is the length of nmbers // sets x to 0 initialy | increases x by +1 each time it restarts to begin the loop // V V V for (var x … Read more

[Solved] C++ while loop resetting variables?

Moving the line stringstream aa; just before the line aa << b; solves the problem for me. This is perhaps caused by use of aa both as an input stream as well as output stream. Not sure of the details. Update Here’s your program with a bit of error checking code thrown in. #include <iostream> … Read more

[Solved] java script newline replacement

Instead of logging the result of each character, concatenate them to a result variable, and then output that, once: var puzzle = [0x3c, 0x62, 0x75, 0x74, 0x74, 0x6f, 0x6e, 0x20, 0x6f, 0x6e, 0x63, 0x6c, 0x69, 0x63, 0x6b, 0x3d, 0x27, 0x6a, 0x61, 0x76, 0x61, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x3a, 0x69, 0x66, 0x20, 0x28, 0x64, … Read more

[Solved] How can I make the efficent for loop in Python?

Assuming s.subjects is None or some other False value when there are no subjects, and likewise for books for s in students: for subject in s.subjects or []: for book in subject.books or []: writer.writerow(s.name, s.class, subject.name, book.name) More generally, you can write for s in students: for subject in s.subjects if <condition> else []: … Read more

[Solved] Access B”i” variable inside loop

You cannot access variables like this. You have to define a List or an array int A = 0; int[] myIntArray = {1,2,3,4,5}; for (int i = 0; i < myIntArray.length; i++){ //Now you can access your array with the index A = myIntArray[i]; //This statement still does not make much sense } You should … Read more