sorting

问题 Sorting five integers using bitwise or comparison operators can be achieved by first getting the highest number then the second highest then the third and so on. Here is my code in getting the highest number: #include <stdio.h> int main() { int a, b, c, d, e; int aa, bb, cc, dd, ee; a = 4; b = 2; c = 5; d = 1; e = 3; aa = (a > b) ? ((a > c) ? ((a > d) ? ((a > e) ? a : e) : ((d > e) ? d : e)) : ((c > d) ? ((c > e) ? c : e) : ((d > e) ? d : e))) : ((b > c) ? ((b > d) ? ((b > e) ? b : e) : ((d >

问题 i am having the field which has data in this way . A_0121-X-1 A_0121-X-10 A_0121-X-11 A_0121-X-2 A_0121-X-3 A_0121-Z-1 A_0121-Z-11 A_0121-Z-12 A_0121-Z-13 A_0121-Z-2 A_0121-Z-3 S0 How to sort numerically like this A_0121-X-1 A_0121-X-2 A_0121-X-3 A_0121-X-10 A_0121-X-11 A_0121-Z-1 A_0121-Z-2 A_0121-Z-3 A_0121-Z-11 A_0121-Z-12 A_0121-Z-13 Thanks in advance 回答1: i think you mean to natural sort in js look on Brian Huisman solution https://web.archive.org/web/20130929122019/http://my.opera.com

问题 I try to understand a formula when we should use quicksort. For instance, we have an array with N = 1_000_000 elements. If we will search only once , we should use a simple linear search , but if we'll do it 10 times we should use sort array O(n log n) . How can I detect threshold when and for which size of input array should I use sorting and after that use binary search? 回答1: You want to solve inequality that rougly might be described as t * n > C * n * log(n) + t * log(n) where t is number

问题 $array = array(5,4,6,8,5,3,4,6,1); I want to sort $array like asort does, but the problem is that asort is a function and its product can't be stored in a variable. How can I do something like this?: $array = array(5,4,6,8,5,3,4,6,1); $sorted_array = asort($array); Edit: I also want $array to keep its original order. 回答1: Do this for maintaining $array in its original order $array = array(5,4,6,8,5,3,4,6,1); $sorted_array = $array; asort($sorted_array); Output http://codepad.viper-7.com

问题 I use sort by + name, and explorer cannot sort my files by name. How can they screw up something so easy? Is there any magic registry way to do this, here is the explorer output and dir output. I want the dir version of course. 回答1: Windows 7's sort is an absolute joke. The rubbish above about natural sorting is no excuse - I don't know anyone who would naturally sort "Back to the Future 3" before "Back to the Future" for example, and other languages existed pre Windows 7. The fix can be

问题 how can I sort these two arrays date wise one array has all the dates please tell me a way to fix this problem The code i tried <?php $date=array("2018-09-28","2018-11-26","2018-12-26","2019-01-25","2019-02-25","2019-03-25","2019-04-25","2019-05-27","2019-06-25","2019-07-25","2019-08-26","2019-09-25","2019-10-25","2019-11-25","2019-12-26","2017-05-30","2017-05-31","2017-10-26","2017-10-27","2020-01-04"); $amount=array("-1000","-1000","-1000","-1000","-1000","-1000","-1000","-1000","-1000","

问题 I'm working with a string vector with a structure corresponding to the one below: messy_vec <- c("0 - 9","100 - 150","21 - abc","50 - 56","70abc - 80") I'm looking to change a class of this vector to factor which levels would be ordered according to the first digit(s) . The code: messy_vec_fac <- as.factor(messy_vec) would produce > messy_vec_fac [1] 0 - 9 100 - 150 21 - abc 50 - 56 70abc - 80 Levels: 0 - 9 100 - 150 21 - abc 50 - 56 70abc - 80 whereas I'm interested in obtaining vector of

问题 This seems like a simple problem but I am having trouble doing this in a fast manner. Say I have a matrix and I want to sort this matrix and store the indices of the elements in descending order. Is there a quick way to do this? Right now, I am extracting the maximum, storing the result, changing it to -2, and then extracting the next maximum in a for loop. Which is probably the most inefficient way to do it. My problem actually requires me to work on a 20,000 X 20,000 matrix. Memory is not

问题 I am sure this question has possibly been asked before but I can't seem to find the correct answer. If I have two lists _list1 = ["keyName", "test1", "test2"] _list2 = ["keyName", "test2", "test1"] I am trying to use _list1 to rearrange elements in _list2 so that they match the order exactly. What's the cleanest way to do that? Desired output: _list1 = ["keyName", "test1", "test2"] _list2 = ["keyName", "test1", "test2"] I am sorry if this is duplicate but so far I am only able to find answers

问题 I am sure this question has possibly been asked before but I can't seem to find the correct answer. If I have two lists _list1 = ["keyName", "test1", "test2"] _list2 = ["keyName", "test2", "test1"] I am trying to use _list1 to rearrange elements in _list2 so that they match the order exactly. What's the cleanest way to do that? Desired output: _list1 = ["keyName", "test1", "test2"] _list2 = ["keyName", "test1", "test2"] I am sorry if this is duplicate but so far I am only able to find answers