251 questions
[[1, 1, 1, 1, 1], [1, 1, 1, 1], [1, 1, 1]] I wrote it like this. myList = [[1] * 4] * 3I changed only one value at the beginning, but the whole value of the element changed.myList[0][0] = 5 #[5, 1, 1,...
array = [0,10,20,40]I'd like to approach from the back in order of 40->20->10->0.In C++,for (i = array.length() - 1 ;i >= 0; i--)We wrote it togetherWhile writing fori in list on Python,Is...
Text file content is 1 0.552344 0.384028 0.159375 0.1958331 0.780078 0.595833 0.236719 0.133333It's like this After executing Python code [1 0.552344 0.384028 0.159375 0.195833] , [1 0.780078 0.59583...
list = [{ key1:value1, key2:value2, key3:value3,........}, { key:value, key2:value2,...}, { key:value, key2:value2,...}] The elements of the list are in the form of DickshireHow can I find the value u...
What is the difference between append() and extend() in the Python list method?
Is arr._len_() the only function that returns the array length?As far as I know, I've learned that it's not good to write functions or variables that start with an underline (_), but I can't find any ...
Map<String, List> mainMap = new HashMap<String, List>();for(int i=0; i<something.size(); i++){ Set set = getSet(...); //return different result each time List listOfNames = new ArrayLis...
If there is an overlapping list such as lst in the code below, take out the column you want and make it a listIs there a built-in function?Is there a embedded function that runs the second for loop pa...
In the list, I want to write code that moves side by side according to the keyboard a and d keys, but when I execute it, I want to execute it right away when I press the key a and enter it, but what s...
I'd like to show you a little bit of the items on the list and let the user scroll and get additional items when they reach the end of the list. What can I do?
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