sorting

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: How do I sort unicode strings alphabetically in Python? As a citizen of the Rest-of-the-World, I'm really annoyed by the fact that computers aren't adapted by default to deal with international issues. Many sites still don't use Unicode and PHP is still in the Dark Ages. When I want to sort a list of words or names in romanian I always have to write my own functions, which are hardly efficient. There must be

问题 I'm trying to sort a list of type [(String, Int)] . By default, it is sorting by Strings and then Ints (if the Strings are equal). I want it to be the opposite — first, compare Ints and then if equal compare the Strings. Additionally, I don't want to switch to [(Int, String)] . I found a way to do so by defining an instance, but it only works for my own data type, which I don't want to use. 回答1: You can sort with sortBy :: (a -> a -> Ordering) -> [a] -> [a]: import Data.List(sortBy) import

问题 This question is a continuation to this question. Lets say I have an array like below: const questions = [ {_id: 1, q: 'why?', group: 'no-group', date: '8', selected: false }, {_id: 2, q: 'what?', group: 'group 1', date: '6', selected: false }, {_id: 3, q: 'when?', group: 'no-group', date: '7', selected: false }, {_id: 4, q: 'where?', group: 'group 1', date: '5', selected: false }, {_id: 5, q: 'which?', group: 'group 2', date: '3', selected: false }, {_id: 6, q: 'who?', group: 'no-group',

问题 This question is a continuation to this question. Lets say I have an array like below: const questions = [ {_id: 1, q: 'why?', group: 'no-group', date: '8', selected: false }, {_id: 2, q: 'what?', group: 'group 1', date: '6', selected: false }, {_id: 3, q: 'when?', group: 'no-group', date: '7', selected: false }, {_id: 4, q: 'where?', group: 'group 1', date: '5', selected: false }, {_id: 5, q: 'which?', group: 'group 2', date: '3', selected: false }, {_id: 6, q: 'who?', group: 'no-group',

问题 Is there an equivalent min() for the keys in an array? Given the array: $arr = array(300 => 'foo', 200 => 'bar'); How can I return the minimum key ( 200 )? Here's one approach, but I have to imagine there's an easier way. function minKey($arr) { $minKey = key($arr); foreach ($arr as $k => $v) { if ($k < $minKey) $minKey = $k; } return $minKey; } $arr = array(300 => 'foo', 200 => 'bar'); echo minKey($arr); // 200 回答1: Try this: echo min(array_keys($arr)); 回答2: Try with echo min(array_keys($arr

问题 How can I sort integers alphabetically? Like this: integers = [10, 1, 101, 2, 111, 212, 100000, 22, 222, 112, 10101, 1100, 11, 0] printed like this on Python console [0, 1, 10, 100000, 101, 10101, 11, 1100, 111, 112, 2, 212, 22, 222] I have tried this def sort_integers(integers): return sorted(integers) but I guess you have to do it this way def sort_integers(integers): return sorted(integers, key = lambda....... ) I just don't know to what to write after the lambda? 回答1: sorted(integers, key

问题 How can I sort integers alphabetically? Like this: integers = [10, 1, 101, 2, 111, 212, 100000, 22, 222, 112, 10101, 1100, 11, 0] printed like this on Python console [0, 1, 10, 100000, 101, 10101, 11, 1100, 111, 112, 2, 212, 22, 222] I have tried this def sort_integers(integers): return sorted(integers) but I guess you have to do it this way def sort_integers(integers): return sorted(integers, key = lambda....... ) I just don't know to what to write after the lambda? 回答1: sorted(integers, key

问题 How do I sort a text file by three columns with a specific order to those columns in Python? My text_file is in the following format with whitespaces between columns: Team_Name Team_Mascot Team_Color Team_Hometown Number_of_Wins Team_Coach Example: Bears LittleBear Blue Beartown 15 BigBear I want to sort it by Team_Color first, Team_Hometown second, and Number_of_Wins third in ascending order. Therefore the attributes: Bears Blue Beartown 15 Coach1 Bears Red Dogtown 30 Coach6 Bears Blue

问题 How do I sort a text file by three columns with a specific order to those columns in Python? My text_file is in the following format with whitespaces between columns: Team_Name Team_Mascot Team_Color Team_Hometown Number_of_Wins Team_Coach Example: Bears LittleBear Blue Beartown 15 BigBear I want to sort it by Team_Color first, Team_Hometown second, and Number_of_Wins third in ascending order. Therefore the attributes: Bears Blue Beartown 15 Coach1 Bears Red Dogtown 30 Coach6 Bears Blue

问题 I am given k sorted arrays and need to merge them into one sorted array. We are assuming that n is the total number of elements in all the input arrays and that k=3. public class Merge { // Create a mergeklists() to merge 3 sorted arrays into one sorted array // Input: 3 sorted arrays a1[], a2[], a3[] // Output: one sorted array a[] that contains all the elements from input arrays public static void merge3lists(int[] a1, int[] a2, int[] a3, int[] a) { int i=0; int j=0; int h=0; int n = a1