Because i remembered that in Python, there is a package named cjson (or similar), it can finish the same job much faster

What's a prime number?

What's a prime number?

aai,,we..A number that is divisible only by itself

#include <math.h> main() { int i, j; printf("%d\n", 2); for(i = 3; i <= 100; i = i + 1) { for(j = 2; j < i; j = j + 1) { if(i % j == 0) break; if(j > sqrt(i)) { printf("%d > %f & i=%d\n",j,sqrt(i),i); break; } } } return 0; } Who is able to explain why use squareroot tos test for the loop ?

Because if a number is not divisible by any number less than its square root, the number is just a prime number.

Wooow,Thanks\

Please help

Means you are silly

Wooow,Thanks\

You'll never discover anything new going far than the square of that number because either you have already considered it or you'll not discover anything new 100, sqrt(100) = 10 ~> 1,2,5,10,20,50,100 are factors of 100. But if you study them you discover that if you study only the ones before 10 you get them all: 1 will give you 100 (100/1 = 100), while 2 will give 50 (100/2 = 50), too, etc etc

/this is the code of python

#include <math.h> main() { int i, j; printf("%d\n", 2); for(i = 3; i <= 100; i = i + 1) { for(j = 2; j < i; j = j + 1) { if(i % j == 0) break; if(j > sqrt(i)) { printf("%d > %f & i=%d\n",j,sqrt(i),i); break; } } } return 0; } Who is able to explain why use squareroot tos test for the loop ?

Ok so normally you would try dividing a number by numbers from 2 to half of that number in order to check if it's prime, but the problem is with a very large number that becomes time consuming, so we just divide a number by numbers from two to the square root of that specific number to check if it is prime inorder to save ourselves some time.. although u should know the second method isn't so accurate..

Hi guys, I would like to know if there is any library/package/method for export and import a value please? For example: int a = 666; export(a, file_name); next time when I want to use the value: int a = import(file_name);

How to connect c++ program with database

Is this class is correct?? I'm beginner to this language,idk this class hri correct anyone can help me

Is this class is correct?? I'm beginner to this language,idk this class hri correct anyone can help me

C# I guess

Ah yes sry I think someone know this language sry

Hi all, I have a project that I'd like to cross compile to ARM to get it working on Raspberry Pi. It is currently working on Linux x86, using CMake and CLion. What is the best/most reliable way to accomplish this?

Use gcc, look for xcompile flags for arm. That's all you need

does any one knw how to read and write to a usb com port using c++

Who is able to code front end using c++

Yap but vc++ though.. but back end still pure c++ though😊

https://www.instagram.com/p/B2Dt10zg6_z/?igshid=6kfys9xtikko

Please who can give me a code that draws a sphere in opengl

Please who can give me a code that draws a sphere in opengl

I can't find any good tutorials

A sphere is not that simple, as you need to know about generation by rotation

Really?

Really?

Apparently he's blind