@programminginc - страница 722

Rortha

@MissRose_bot Sorry for wrong group

olli

Guys I'm multiplying large integers. The code runs correctly in python but the same code gives wrong output in cpp. What could be the reason?

overflow, that does not happen in plain Python

Anonymous

overflow, that does not happen in plain Python

Won't that give negative answer?

olli

Won't that give negative answer?

regarding python or c++?

Anonymous

regarding python or c++?

Cpp

olli

Cpp

this depends on the computation and the type of integer. Assuming signed integers, the value will be negative in most representations if the highest-order bit is set

Anonymous

this depends on the computation and the type of integer. Assuming signed integers, the value will be negative in most representations if the highest-order bit is set

I see. It's unsigned

Anonymous

Mhm got it

olli

Mhm got it

👍🏻 (unsigned integers will always be positive)

Anonymous

👍🏻 (unsigned integers will always be positive)

XD

Anonymous

I'll use bigint in java

olli

I'll use bigint in java

Python uses something similar. There are also libraries for C / C++ that allow you to use arbitrary sized integers

Anonymous

Python uses something similar. There are also libraries for C / C++ that allow you to use arbitrary sized integers

Yes but you need to download them separately. Not allowed in sites like codeforces

Anonymous

Ok

Shubham

Ok...😊👍

klimi

/warn M. Crypto ad

Thespartann

Where is my crypto

Thespartann

klimi

Where is my crypto

/warm crypto dude

Anonymous

I think the screenshots are better

Roxifλsz 🇱🇹

First one is more efficient, the second one also sorts the array needlessly. Btw, neither of them will compile, your arrays are called "a" not "arr"

Anonymous

yes

Anonymous

The time complexity of the first is n

Anonymous

o(6)

Anonymous

I wanted to write a c program of this: enter a number from user and print all even numbers between 1 to n

Anonymous

It doesnt work

Anonymous

Can any one tell me why

Roxifλsz 🇱🇹

It doesnt work

Be more specific, "doesn't work" doesn't really say anything to me

Roxifλsz 🇱🇹

Also, don't post your code in a photo of your screen, take a screenshot or use a snippet website, it's not hard

Anonymous

Sorry

Anonymous

When I execute it, it only says enter a number. When I enter a number and click enter nothing happens

Roxifλsz 🇱🇹

It means that the condition of the for loop is never satisfied, did you mean to use || instead of && ?

Anonymous

use ()

Anonymous

My aim is printing the even numbers, if I use II it will print odd numbers too

Anonymous

use ()

?

Anonymous

wait

Roxifλsz 🇱🇹

My aim is printing the even numbers, if I use II it will print odd numbers too

In that case your for loop should only check i <= num and you should have an if statement inside the loop for i%2==0

Anonymous

Right

Anonymous

In that case your for loop should only check i <= num and you should have an if statement inside the loop for i%2==0

Yes I add if statement and it worked, thank you

Anonymous

But I don't understand why this didn't work: for(i=1; i<=num && i%2=0; i++);

Anonymous

Yes I did the same thing, thanks

Roxifλsz 🇱🇹

But I don't understand why this didn't work: for(i=1; i<=num && i%2=0; i++);

Because whenever the loop encounters a number that is not even, it immediately stops, hence nothing gets printed

Anonymous

I understand. Thank you so much

Anonymous

I have difficulty in English，

Stefan

But I don't understand why this didn't work: for(i=1; i<=num && i%2=0; i++);

Double assignment

Anonymous

Double assignment

??

Stefan

you have only one '='

Stefan

i%2=0

Stefan

should be i%2==0

Roxifλsz 🇱🇹

you have only one '='

In his original post with code it was correct

Stefan

and why don't you just find a k from 0 to n and 2k such that 2k <= n

Anonymous

and why don't you just find a k from 0 to n and 2k such that 2k <= n

This is a another way to do it, thanks

hacker hunt

Ok sir

hacker hunt

Next time I don't do that sorry for that

hacker hunt

Hi friends can you help me I want to start a beginner at c and c++ which book I follow

hacker hunt

Tell me friend s

Mark

do you even have any friends here? :^)

Roxifλsz 🇱🇹

Hi friends can you help me I want to start a beginner at c and c++ which book I follow

#freeprogrammingbooks

hacker hunt

Bro can you give me PDF books

Roxifλsz 🇱🇹

I literally gave you a link with lots of resources, if you can't be arsed to actually look at it, that's not my problem

Shubham

Anonymous

I wanted to write a program to find sum of all odd numbers from 1 to n. Here it is:

Anonymous

It is not working correctly. After I enter a number, it stops working

Anonymous

Could someone help me please

Roxifλsz 🇱🇹

The a++ should be inside the while loop itself, not in the if part

Roxifλsz 🇱🇹

And for this type of work, a for loop is better (easier to understand) than a while loop

BinaryByter

It is not working correctly. After I enter a number, it stops working

"it stops workign"?

Anonymous

Yeah

Anonymous

The a++ should be inside the while loop itself, not in the if part

It worked, thankss

BinaryByter

And for this type of work, a for loop is better (easier to understand) than a while loop

IMHO while loops shouldn't be used with counters

Roxifλsz 🇱🇹

IMHO while loops shouldn't be used with counters

Yeah, that's basically what I tried to say

Anonymous

Hi

Anonymous

Gi

disrupt_the_flow

https://github.com/wittmaxi/webcpp

BinaryByter

https://github.com/wittmaxi/webcpp

Hi :D

disrupt_the_flow

Hi :D

Ohai maxi

BinaryByter

i'm the creator of that library :D

disrupt_the_flow

i'm the creator of that library :D

Lol