sorting

问题 I used a string-stream to read an input file with 10 lines and stored all the values into separate arrays. ID, first, last, city, state, and GPA. It looked like this. 1 Nathan Humphery Kansas MO 3.35 2 Sara Jonathan LeesSummit MO 3.56 3 Kayla James Liberty KS 3.78 4 Kyle Davis Independence KS 2.98 ... 8 Daniel Earla Independence KS 3.77 So the ID array would be { 1, 2, 3, 4, ..., 8} and the city array would be {Kansas, LeesSummit, Liberty, Independence, ..., Independence} One of the functions

问题 I'm trying to sort a json list from another list. example: jsonList = [{'id': 'das', 'name': 'something'}, {'id': 'rtn', 'name': 'Something Else'}, {'id': 'ddsn', 'name': 'Something ElseElse'}] orderList = ['rtn', 'ddsn', 'das'] goodList = someFunction(jsonList, orderList ) I need the output to be the json list sorted by the id: goodList = [{'id': 'rtn', 'name': 'Something Else'}, {'id': 'ddsn', 'name': 'Something ElseElse'}, {'id': 'das', 'name': 'something'}] 回答1: goodList = sorted(jsonList

问题 I'm trying to sort a json list from another list. example: jsonList = [{'id': 'das', 'name': 'something'}, {'id': 'rtn', 'name': 'Something Else'}, {'id': 'ddsn', 'name': 'Something ElseElse'}] orderList = ['rtn', 'ddsn', 'das'] goodList = someFunction(jsonList, orderList ) I need the output to be the json list sorted by the id: goodList = [{'id': 'rtn', 'name': 'Something Else'}, {'id': 'ddsn', 'name': 'Something ElseElse'}, {'id': 'das', 'name': 'something'}] 回答1: goodList = sorted(jsonList

问题 I'm trying to sort a json list from another list. example: jsonList = [{'id': 'das', 'name': 'something'}, {'id': 'rtn', 'name': 'Something Else'}, {'id': 'ddsn', 'name': 'Something ElseElse'}] orderList = ['rtn', 'ddsn', 'das'] goodList = someFunction(jsonList, orderList ) I need the output to be the json list sorted by the id: goodList = [{'id': 'rtn', 'name': 'Something Else'}, {'id': 'ddsn', 'name': 'Something ElseElse'}, {'id': 'das', 'name': 'something'}] 回答1: goodList = sorted(jsonList

问题 Specifically I'm searching for a function 'maximumWith', maximumWith :: (Foldable f, Ord b) => (a -> b) -> f a -> a Which behaves in the following way: maximumWith length [[1, 2], [0, 1, 3]] == [0, 1, 3] maximumWith null [[(+), (*)], []] == [] maximumWith (const True) x == head x My use case is picking the longest word in a list. For this I'd like something akin to maximumWith length . I'd thought such a thing existed, since sortWith etc. exist. 回答1: Let me collect all the notes in the

问题 I've got an object array which I have to group and sort: [ { id: 123, group: 'abc', metadata: { name: 'tom' }, date: ISODate("2019-07-08T20:33:40.475Z") }, { id: 456, group: 'def', metadata: { name: 'bob' }, date: ISODate("2019-07-08T20:33:40.475Z") }, { id: 789, group: 'def', metadata: { name: 'bob' }, date: ISODate("2019-07-10T20:33:40.475Z") }, { id: 234, group: 'ghi', metadata: { name: 'frank' }, date: ISODate("2019-07-10T20:33:40.475Z") }, { id: 567, group: 'abc', metadata: { name: 'tom'

问题 I have a code in Angular - PrimeNG and trying to make sorting by date (one of the columns): <p-table [columns]="cols" [value]="questions" selectionMode="single" [(selection)]="selectedQuestion" (onRowSelect)="onRowSelect($event)" [paginator]="true" [rows]="20"> <ng-template pTemplate="header" let-columns> <tr> <th *ngFor="let col of columns"> </th> </tr> </ng-template> <ng-template pTemplate="body" let-rowData let-columns="columns"> <tr [pSelectableRow]="rowData"> <td *ngFor="let col of

问题 I have a code in Angular - PrimeNG and trying to make sorting by date (one of the columns): <p-table [columns]="cols" [value]="questions" selectionMode="single" [(selection)]="selectedQuestion" (onRowSelect)="onRowSelect($event)" [paginator]="true" [rows]="20"> <ng-template pTemplate="header" let-columns> <tr> <th *ngFor="let col of columns"> </th> </tr> </ng-template> <ng-template pTemplate="body" let-rowData let-columns="columns"> <tr [pSelectableRow]="rowData"> <td *ngFor="let col of

问题 So here's the situation: I have millions, possibly billions, of strings that I am trying to parse and put into a sorted structure, lets say I have 5,000,000 strings. I'm trying to write a fast program that can put all of these strings from an unsorted vector into an ordered data structure that can also search the structure fast, thus the reasoning for the AVL tree (which eventually I plan to use a hash table of a-z for even faster lookup, but that comes later). I get all of the strings into a

问题 I would like to pull values from a PHP array at random, without pulling the same value twice before I've pulled all values from the entire array. In other words, if I have the array... _____ | foo | | bar | | baz | |_____| ...I want to pull a random value three times without pulling the same value twice, so I could have... 1st: foo foo bar bar baz baz 2nd: bar baz foo baz foo bar 3rd: baz bar baz foo bar foo ...on my three separate pulls. Now, I realize I could do this by simply removing the