im trying to figure out how to optimize some code, the purpose is to go through a word list (10k words), make a search query for each word, and then get the last result, printing it if the result is before a certain date. the code: import requests import json import os ln = 0… Read More how to optimize a scraper

The code: int num=999999; //or generally a very big number (like 10^6, etc.) int sum=0; for(int i=num; i>=1; i–) sum+=i; So basically I want to find the sum of the num + num-1 + num-2 +…+ 1, is there any way to make for loop faster or to get rid of it entirely? >Solution :… Read More How can I speed up this for loop? C++

Is it possible to predetermine variables x and d to call initialFunction() without while(1) loop? void function( int xc, int yc, int r, int color ){ int x = 0; int y = r; int d = 1-2*r; while( 1 ){ x++; d += 4*x-2; if( d>0 ){ initialFunction(x,y,d); break; } } while( x>=y ){… Read More how to predetermine variables without loop?

I have the following code that does 3 things: in cell F3 it uppers all text and adds the word "cassa" if not already entered; in cell F25 it enters the date and time of the last editing; in range H5:H12 and D18:K19, if the user deletes the content of the cell, a zero is… Read More Need help optimizing VBA code in Sub WorkSheet_Change

Given: All strings used only contain ASCII characters. A base-128 integer type has been defined. 128 comes from the number of possible characters we will be expecting. Although most basic operations are not supported, there is implementation to compare one of these base-128 integers to another (<, >, =). Our data is stored in an… Read More Is this a reasonable method of performing a binary search on an array of strings?

I am currently writing a program in C which needs to run as fast as possible and am currently looking at improving the speed of some of the calculations performed. I am aware that the slowest operations are multiplication and division, and I have replaced my multiplications/divisions by a power of 2 with left/right shifts.… Read More Is there a faster way to multiply by 6 in C?

I’m searching for a way of filling a python dictionary at the same time it is created I have this simple method that firstly creates a dictionary with all the keys at value 0 and then it reads the string again to fill it def letter_count(word): letter_dic = {} for w in word: letter_dic[w] =… Read More How to fill python dictionary while creating it

In the following code I would like to replace the definition of the function f f=@(x)-x(1)*x(2)*x(3); x0=[1 1 1]; lb=[0 0 0]; nonlincon=@constr; x=fmincon(f,x0,[],[],[],[],lb,[],nonlincon) function [c,ceq] = constr(x) c = [2*x(1)*x(2)+2*x(1)*x(3)+2*x(2)*x(3)-100 ; 1-x(1)*x(2)]; ceq = []; end I replaced it with function erg = f(x) erg = -x(1)*x(2)*x(3); end but unfortunatly it doesn’t work. What… Read More Rewriting a function

I wanted to know how to improve the performance of computer systems in general? >Solution : There are a number of ways to improve the performance of computer systems: Upgrade the hardware. This is probably the most obvious solution, but it is also the most expensive. Use faster and more efficient software. This can be… Read More How to improve the performance of computer systems?

What would be the pros/cons of using: if (‘key’ in obj) vs if (obj[‘key’]) Is one faster than another? >Solution : Consider the following: const myObj = { hello: undefined, }; console.log(myObj.hello); console.log(‘hello’ in myObj); The key "hello" is defined in myObj but its value is undefined. If you truly only need to know if… Read More Should I use the in operator or property accessors to check if a key exists in an object?