tuples

I have a generator of tuples and I need to delete tuples containing same elements. I need this output for iterating. Input = ((1, 1), (1, 2), (1, 3), (3, 1), (3, 2), (3, 3)) Output= ((1, 1), (1, 2), (1, 3)) Order of output doesn't matter. I have checked this question but it is about lists: Delete duplicate tuples with same elements in nested list Python I use generators to achieve fastest results as the data is very large. You can normalize the data by sorting it, then add it to a set to remove duplicates >>> Input = ((1, 1), (1, 2), (1, 3), (3, 1), (3, 2), (3, 3)) >>> Output = set(tuple

With n=5 and k=3 the following loop will do it List<String> l=new ArrayList<String>(); l.add("A");l.add("B");l.add("C");l.add("D");l.add("E"); int broadcastSize = (int) Math.pow(2, l.size()); for (int i = 1; i < broadcastSize; i++) { StringBuffer buffer = new StringBuffer(50); int mask = i; int j = 0; int size=0; System.out.println(); while (mask > 0) { if ((mask & 1) == 1) { System.out.println(".. "+mask); buffer.append(l.get(j)); if (++size>3){ buffer = new StringBuffer(50); break; } } System.out.println(" "+mask); mask >>= 1; j++; } if (buffer.length()>0) System.out.println(buffer.toString(

I have a list a = [(1,'a'), (1,'b'), (2,'c')] , and I want to get this list: [(2,'c'), (1,'a'), (1,'b')] If I do this: sorted(a, reverse=True) I can only get: [(2,'c'), (1,'b'), (1,'a')] How can I get the list I want? If you want to preserve the sort order in the original list, but sort only by the first element, you can do >>> from operator import itemgetter >>> a = [(1,'a'), (1, 'x'), (1,'b'), (2,'c')] >>> sorted(a, key=itemgetter(0), reverse=True) [(2, 'c'), (1, 'a'), (1, 'x'), (1, 'b')] In Python the sort and sorted functions use the TimSort algorithm, which is a stable sort. Being stable

This question already has an answer here: Sorting a Python list by two fields 7 answers I'll get to the point,i have this: ocurrencias = [('quiero', 1), ('aprender', 1), ('a', 1), ('programar', 1), ('en', 1), ('invierno', 2), ('hace', 1), ('frio', 1), ('este', 1)] I want to sort it by the second value of the tuples and then by their string value and then print every element to get this: output:invierno 2 a 1 aprender 1 en 1 este 1 frio 1 hace 1 programar 1 quiero 1 Don't know if i'm making it clear enough,but i'm not really proficient at english so forgive me. Thanks in advance Use sorted with

Please help me to get the counter for the list SS2 in list SS1 in PYTHON using from collections import Counter or any other fastest way SS1 = [(1, 2, 3, 4, 5), (1, 2, 3, 4, 6), (1, 2, 3, 5, 6), (1, 2, 4, 5, 6), (1, 3, 4, 5, 6), (2, 3, 4, 5, 6)] SS2=[(1, 2, 3), (1, 2, 4), (1, 2, 5), (1, 2, 6), (1, 3, 4), (1, 3, 5), (1, 3, 6), (1, 4, 5), (1, 4, 6), (1, 5, 6), (2, 3, 4), (2, 3, 5), (2, 3, 6), (2, 4, 5), (2, 4, 6), (2, 5, 6), (3, 4, 5), (3, 4, 6), (3, 5, 6), (4, 5, 6)] Here is what i have tried and i don't know how to get the count for (1,2,4) th elements of the each tuple SS1=[(1, 2, 3, 4, 5), (1

I have a question about tuples and lists in Haskell. I know how to add input into a tuple a specific number of times. Now I want to add tuples into a list an unknown number of times; it's up to the user to decide how many tuples they want to add. How do I add tuples into a list x number of times when I don't know X beforehand? hammar When doing functional programming, it is often better to think about composition of operations instead of individual steps. So instead of thinking about it like adding tuples one at a time to a list, we can approach it by first dividing the input into a list of

I am trying to create a function which takes a list of tuples as argument and sort the by the second element. It doesn't print anytning else, just the error '*** Exception: main.hs:20:1-76: Non-exhaustive patterns in function sortWords' Here is the code: sortWords :: [(String, Int)] -> [(String, Int)] sortWords [(str,num)] = sortBy (\x y -> compare (snd x) (snd y)) [(str,num)]` And here is how I call the function main = do putStrLn $ show $ sortWords [("friend",1),("she",2)] I have to say that I run my program on http://Repl.it website Thanks! sortWords [(str,num)] = Your function definition