Advertisements I was doing codewars Super Coordinate Sums task. def super_sum(d, n): return int((n – 1) * d / 2) * n ** d This is code that i wrote. It works for like 80% of test cases, but not for those for whom d is odd and n is even. I understand that it… Read More How to avoid number converting to the float after division in python?
Advertisements I see at many places the fastest solution to a problem(often complex ones) sometimes have this line – "int&& a = something;" what does it really mean? To test, i tried "int&& a = 5;" against "int b = 5;", and both a and b print same value 5. However, in disassembly, i see… Read More What does "int&& a = something;" in C++ means?
Advertisements I am creating an excel date format while I using JavaScript but I got stuck about convert string to integer. function getCurrentDateFormat (date,errorValue, removeSecond, clientTimeZoneOffset) { if (date !== undefined && date !== null) { const currDate = new Date(date) const currDay = currDate.getDate() const currMonth = currDate.getMonth() const currYear = currDate.getFullYear() const currHour… Read More Javascript convert from string number to integer
Advertisements Thanks for reading my questions. I am doing a test regarding to the behavior of the default constructor of a derived class. For example, here is my structure: class Base1 { public: int a1; int b1; virtual void display() const { cout << "Class Base1" << endl; } }; class Derived : public Base1{… Read More Not sure whether the built-in type(like int) data member in base class would be default intialized?
Advertisements I have created the following pandas dataframe: import pandas as pd import numpy as np ds = {‘col1’ : [‘1489900119000’, ‘้้คค,1’] } df = pd.DataFrame(data=ds) which looks like this: col1 0 1489900119000 1 ้้คค,1 I am trying to build a new column (called col2) which contains the values in col1 arranged as list. Hence… Read More Ignore invalid value in pandas dataframe column
Advertisements So in leetcode 4 sum there is a test case [1000000000,1000000000,1000000000,1000000000] and for some reason the addition of these is equal to -294967296 and i do not understand how exactly this works i assumed it was because the actual answer is larger than max val of an int but i tried that and it… Read More Why does it output -294967296
Advertisements I want to create fast new random number between 0 and 9. For this modified a code that I found there: Why do I always get the same sequence of random numbers with rand()? and integrated it into a loop The output I get is Random fast seeded: 1 Random fast seeded: 1 Random… Read More Get instantaneous random number (in a loop)
Advertisements Trying to increase an integer value So basically I’m trying to increase "e" so everytime I input a new line it would go 0, 1 etc My input would look like this example1 example2 def no(paths: str): e = 0 for path in paths.split(" "): print(" ItemListData(" + str(e) + ")=(ItemDefination=" + path +… Read More How would I increase a integer value inside this loop?
Advertisements As a language that aims for safety and performance, Rust provides a powerful data structure called HashSet that provides a fast and efficient way to store and retrieve unique values. HashSet is optimized for scenarios where you need to check for the presence of a value and avoid duplicates, making it a popular choice… Read More How to apply function that returns Result to each element of HashSet in Rust
Advertisements #include <iostream> using namespace std; int main() { int nominals[15] = {50000, 20000, 10000, 5000, 2000, 1000, 500, 200, 100, 50, 20, 10, 5, 2, 1}; float numer; cin>>numer; numer = numer * 100; int numer2 = (int)numer; while(numer2 != 0) { for(int i = 0; i<15; i++) { if(numer2 >= nominals[i]) { numer2… Read More Problem with int to float typecasting and couting