I wrote a function that returns a directed graph as an adjacency matrix. The function requires two arguments: the amount of nodes and the amount of edges. At first, nodes are placed and instantly connected to the graph. When all nodes are added, random edges are created until all edges are placed...
Who should I declare method inside a controller method in laravel, first I think in add methods inside the controller class
<?php
namespace App\Http\Controllers;
use App\Models\Sale;
use Illuminate\Http\Request;
class SaleController extends Controller
{
public function store(Request $reque...
This evening I have seen the text of the Rainfall Challenge posted seven years ago by Hunter McMillen. I did not look at his solution (besides, I have no clue about perl), but I was intrigued by the problem, so I set out to solve it. In this case, it seems to me that OOP is a bit of an overkill, ...
Last week I challenged myself to create the smallest possible code for a Tic Tac Toe game with an AI as opponent. Smallest possible in regards to say least number of characters used. The requirements on the game are as follows:
A "nice" playing experience (ability to get user input and print the...
I'm taking CS50 Intro to CS. In this assignment, we're asked to make a program that can identify what type of credit card (AMEX, Visa, MasterCard) is given in the input (and whether it is valid.) Validity is checked using Luhn's Algorithm. Here's how the algorithm works:
Multiply every other dig...
so I made a method that takes an array and converts it to a matrix given that it is a valid conversion however there are some redundant code in the beginning and I thought maybe you could help me? I am new to programming so avoid complicated imports and such.
private int[][] toMatrix(int[] ar...
I am relatively new to C++ coming form languages such as Java and would like tips to make my code more C++ like and doing things in the C++ way.
The header file
#pragma once
#include <string>
#include <memory>
class Expression
{
public:
std::string symbol;
std::shared_ptr<Expression> le...
my code is this:
#include
using namespace std;
int main() {
int i;
for(i = 1; i<100; i++){
{
if(i%2==0)
int a[100]={i};
cout<<a[i]<<" ";
}
}
return 0;
}
it gives me output error as:
prog.cpp: In function ‘int main()’:
prog.cpp:10:15: error: ‘a’ was not declared in this ...
Initially I have a code in JavaScript which looks like -
const createUsersInfo = obj => {
const studentDetails = [];
const teacherDetails = [];
obj.forEach(x => {
if (x.type) {
if ( x.type === 'teacher' && x.group !== 'admin' ) {
teacherDetails.push(x);
...
Assume we are given \$ n \$ natural numbers, \$a_{1}, a_{2}, \dots, a_{n} \$ and we are supposed to calculate the following summation:
\$ \sum_{i = 1}^{n}\sum_{j = 1}^{n} \lfloor \dfrac{a_{i}}{a_{j}} \rfloor\$.
This is a question from a challenge and in only one test, I get time-limit exceeded er...
I'm trying to do a simulation on the role of luck in human achievement.
Here is what I intend to do with my code:
Create 20000 instances of people with randomly generated scores for skill, experience and hard-work(0 to 99), and a luck value(0 to 100).
Create a total score for each person, with...
I just recently learned how to write Methods in C#. Here is one experiment I made. It calculates addition, subtraction, division, multiplication, and the square root of a number. fill free to give me suggestions on how I can improve the code. I also do know that I need to set up a system that pre...
I'm implementing an algorithm in python which makes use of a lot of linear algebra, and after struggling for a while to come up with a way to make the code readable I ended up doing the following;
Example:
class StateSpaceModel:
def __init__(self, A=None, B=None, C=None, D=None):
self...
I have homework about hash tables. Introduction of teacher and where did I stuck in below:
Insert 1000 password list into a hash table with an appropriate hash function. It would be better if the number of collusion does not exceed 200. Search a password within 1000 password list using Hash Table...
Despite the many decent answers to this question, one was unable to find an iterative solution. Here's what I came up with:
Code:
type CircularReferenceHandler = (parentKey: IndexKey, parentValue: Dictionary<IndexKey, any>, childKey: IndexKey, childValue: Dictionary<IndexKey, any>) => void;
type ...
I have the following pattern showing up several times in my code, where I need to convert a pandas dataframe to named tuples for processing later. A profiling of my code shows that the majority of time is spent here.
Of note, the number of docs is ~4.9 K and the size of each list, c is about ~2K,...
The below function takes in a dataframe consisting of an excel sheet with the Price column. It works correctly however it looks unnecessarily long for something quite simple. Basically calculating a Simple Moving Average based on Price : SMA = Sum of all prices in a period/period
def SimpleMA(Tim...
I wanted to render some Vega plots in a rust+wasm web application I've been building with Yew. I'm a bit new to Rust, so I'm looking for feedback on runtime safety and stylistic issues.
I was specially skeptical of the spawn_local I copied from someone's GitHub and the amount of unwraps thrown ar...
