recursion

问题 I need to find the length of the longest monotonically increasing subsequence using only a single recursion function. For example given an arr={45 1 21 3 33 6 53 9 18} it need to give back 5. I have started to write the code but i'm stuck, and i don't know how to find out which of the calls gives the maximum length. The function longestSet is my auxiliary function i can use any variables i want but it have to be called from the function max_set . void question3(int question) { int *arr, size;

问题 Note: I already asked a specific question on this programm before, but now I'm stuck at the very last step and I guess it might be better to open a new thread for it. Description: I'm required to implement a programm that sorts numbers ranging from 0 to 99999 recursively (this is basically Radix sort). The process itself is kinda simpel: The user types in an array that contains those numbers in the main method. Then, the main method calls for the sort-method where I create a two-dimensional

问题 Objective What i am trying to do is catch the "Failed to load resource" error and put it in an alert window. Issue I am trying to catch a video that does not exist. Try catch is not catching the exception. Background I am trying to play through an array of videos, i continue to the next video when the previous one finishes. The issue is there wont always be a video for every element in the array. I have tried placing the try catch around just the play function. I have also tried placing the

问题 As I know, a recursive function is a function which calls it self, and it has the characteristic of having a base case. This is a function for pre-order traversal of a binary tree. Is this a recursive function? Absence of the base case confuses me. void pre_order(struct node* current){ // preorder traversal printf("%d\n",current->data); if(current->left != NULL){ pre_order(current->left); } if(current->right !=NULL){ pre_order(current->right); } } 回答1: Since it calls itself it is a recursive

问题 How do I get this code to print all values of the fibonacci sequence of given terms? Right now it prints only the last term #include <stdio.h> int fibonacci(int n){ if (n==2) return 1; else return fibonacci(n-1) + fibonacci(n-2); } int main() { int n; int answer; printf("Enter the number of terms you'd like in the sequence\n"); scanf("%d",&n); answer = fibonacci(n); printf("The answer is %d\n", answer); } 回答1: Your base case is incorrect. When n==2 , you'll call fibonacci(1) and fibonacci(0)

问题 I have a case class that is recursive and looks like this: case class Config(name: String, isEnabled: Boolean, elems: Map[String, MyCase]) case class MyCase( id: String, isActive: Boolean, elems: Option[Map[String, MyCase]]) Where the Config contains the id of the MyCase entries contained as a Map . I have to iterate over this structure and come up with a Map that contains the parent child relations. Say for example., if I have the Config class represented as below (for simplicity, I have

问题 I suspect I'm way off here, but essentially I'm trying to retrieve a list of tickets and then the details for each ticket. I have the first part working, but when I tried to add the "recursive" part it's just failing. This is the working code that just lists ids: <template is="dom-bind" id="app"> <iron-ajax auto url="https://<mydomain>.freshdesk.com/api/v2/tickets" headers='{ "user": "<apikey>", "pass": "X", "sendImmediately": "true" }' handle-as="json" method="GET" last-response="{

问题 please some one help me , i have to print a document in multiple pages in c#, i went through internet then used this code but not working, (loop is again start after printing one page ) private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) { try { Graphics graphic = e.Graphics; SolidBrush brush = new SolidBrush(Color.Black); Font font = new Font("Courier New", 12); float pageWidth = e.PageSettings.PrintableArea.Width; float pageHeight = e

问题 Given the class named OrderInfo , what's the best way to ensure other developers (including myself) do not accidentally make the recursive error shown here: public class OrderInfo : ICollection<UnitModule> { // Other code for class... public bool Changed { get; private set; } public void Save() { Save(this); // I want the static method to handle saving the data } public static void Save(OrderInfo item) { for (int i = 0; i < item.Count; i++) { if (item[i].Changed) { item[i].Save(); } } if

问题 I'm using a third party javascript that has given me a lot of need for listeners. For instance, when a certain div has been loaded, I want to do something with it. It changes styles of objects as it goes as well so I need to watch for it to have a certain style. I've build functions to act when an id or class exists. Here's the current ID function. As you can see, it uses jQuery. function whenLoaded(element_id, action) { if ($(element_id)) { action(); } else { setTimeout("whenLoaded('"