sorting

问题 I have a color table related to products. The value of colors which is a hexadecimal is saved in a nvarchar field. In the products section I have a dropdown List for colors of a specified product. So I need to sort these colors from lighter to darker... I'm using MVC 3.0 and writting C# code. 回答1: You want to get their intensity, so convert from RGB to HSV. See this post for more details. 来源： https://stackoverflow.com/questions/7434347/sort-hex-color-values

问题 I have two arrays and depending on the element's position in the array it receives a value. Both arrays contain the same elements, but at different positions. I would like to calculate the value for each element, merge the arrays into a single array, and sort the new array. The only idea I can think of is to turn my initial arrays into arrays of objects, merge those, sort by object value, then map that order into a new array. var ranks = [], objArray1 = [], objArray2 = []; // 'aaa' = 5, 'bbb'

问题 I have two arrays and depending on the element's position in the array it receives a value. Both arrays contain the same elements, but at different positions. I would like to calculate the value for each element, merge the arrays into a single array, and sort the new array. The only idea I can think of is to turn my initial arrays into arrays of objects, merge those, sort by object value, then map that order into a new array. var ranks = [], objArray1 = [], objArray2 = []; // 'aaa' = 5, 'bbb'

问题 As ?sort said, if the argument partial is not NULL, it is taken to contain indices of elements of the result which are to be placed in their correct positions in the sorted array by partial sorting. You can read Argument “partial” of the sort function in R for detail. So in the case that I need to find the smallest 5 numbers in x <- sample(1:100, 50) , then sort(x, partial = 1:5)[1:5] will be faster than sort(x)[1:5] However, how could I find the largest 5 numbers with partial sorting?

问题 As ?sort said, if the argument partial is not NULL, it is taken to contain indices of elements of the result which are to be placed in their correct positions in the sorted array by partial sorting. You can read Argument “partial” of the sort function in R for detail. So in the case that I need to find the smallest 5 numbers in x <- sample(1:100, 50) , then sort(x, partial = 1:5)[1:5] will be faster than sort(x)[1:5] However, how could I find the largest 5 numbers with partial sorting?

问题 I have a fairly simple list (a number followed by a sentence), here in the right order: -347 a negative number -100 another negative number -25 and again, a negative number 17 some text 25 foo bar 100 two same texts 100 two same texts (almost) 350 a positive number I need to sort that list each time a new item is added. I searched S.O. and found that answer : Sorting in python - how to sort a list containing alphanumeric values? The code I used is freakish’s, which goes : import re def

问题 I know that I can get the Kth order statistic (i.e. the kth smallest number in an array) by using quickselect in almost linear time, but what if I needed the k smallest elements of an array? The wikipedia link has a pseudocode for the single-element lookup, but not for the k smallest element s lookup. How should quickselect be modified to attain it in linear time (if possible) ? 回答1: Actually modifying quickselect is not needed. If I had an array (called arrayToSearch in this example) and I

问题 I know that I can get the Kth order statistic (i.e. the kth smallest number in an array) by using quickselect in almost linear time, but what if I needed the k smallest elements of an array? The wikipedia link has a pseudocode for the single-element lookup, but not for the k smallest element s lookup. How should quickselect be modified to attain it in linear time (if possible) ? 回答1: Actually modifying quickselect is not needed. If I had an array (called arrayToSearch in this example) and I

问题 I know that I can get the Kth order statistic (i.e. the kth smallest number in an array) by using quickselect in almost linear time, but what if I needed the k smallest elements of an array? The wikipedia link has a pseudocode for the single-element lookup, but not for the k smallest element s lookup. How should quickselect be modified to attain it in linear time (if possible) ? 回答1: Actually modifying quickselect is not needed. If I had an array (called arrayToSearch in this example) and I

问题 k = [] len = 100; time = true cont = document.getElementsByClassName("cont")[0]; cont.innerHTML = ""; for (let i = 0; i < len; i++) { t = Math.round(Math.random() * 800 ) + 5 k.push(t); cont.innerHTML += "<div class='block' style = 'height:" + t + "px'></div>" } function reset(){ k = [] cont.innerHTML = ""; for (let i = 0; i < len; i++) { t = Math.round(Math.random() * 800 ) + 5 k.push(t); cont.innerHTML += "<div class='block' style = 'height:" + t + "px'> </div>" } } function bubble(){