Structures are just a bunch of variables together, an object has a behavior

It is what I said.

It is what I said.

It is what I said.

Do you need just access to the data inside with little implementation of functions? One struct to rule them all Do you need a complete behavior? Different objects to implement it Now i think i made a good suggestion :D

I'm sorry if i misunderstood or confused you :/

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@admin

Uh.

Maybe they're offline?

do u guys really understand nested loops? I am having hard time with them. Ex: for foo, inside it, for foo2 inside that, for foo 3. damn

Mathematically speaking, nested loops represent Cartesian Product.

do u guys really understand nested loops? I am having hard time with them. Ex: for foo, inside it, for foo2 inside that, for foo 3. damn

For example, this is a demo for two-nested-loop C program. #include <stdio.h> int main() { const char* A[] = {"♠️", "♥️", "♣️", "♦️"}; const char* B[] = {"A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"}; const size_t lenA = sizeof(A) / sizeof(A[0]); const size_t lenB = sizeof(B) / sizeof(B[0]); for (int i = 0; i != lenA; ++i) { for (int j = 0; j != lenB; ++j) { printf("%s%s ", A[i], B[j]); } puts(""); } return 0; } It gives you the Cartesian Product of array A and B. For elements in the result of A × B, the code prints it out, and of course you could do anything on the elements to replace printf. That's why I say nested loops represent Cartesian Product mathematically.

this loop never completes

I'm surprised a simple count down would be that time intensive

I'm surprised a simple count down would be that time intensive

https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes

look at the outer loop, it has to go through about 300 billion numbers, of course thats gonna be slow

does this problem really require you to find every prime up to that large number?

https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes

Well... Yes, however, the number 600851475143 is too large for sieve on a personal computer. Allocating such a large array will eat more than 69 GiB memory.

New Doc 2018-01-16.pdf

Have you C++ if you have please send me

Hello. I have problems with loops . I can’t understand how they are working. I know what are doing, but I cannot use them

Making your question more specific with more details helps you getting better answer. Basically, loops do similar tasks (the loop body) many times, within subtle difference (rooted in the loop variable) from one round to another, and then stop (the stop condition). Example: unsigned int sum = 0; for (size_t i = 0; i != 100; ++i) { sum += i + 1; } Here, the loop body represent the codes inside the block ({ ... }) and the codes in the increment part of for loop (++i), the stop condition is !(i != 100), and the loop variable is i. For every round, the loop body does similar task (adding i + 1 to sum), and the loop will stop when the stop condition becomes true. When you look into a round and compare to another, the only subtle difference is caused by the different value of i, which is the loop variable. Another concept might help you to understand how loop works: the invariant condition. An invariant condition is a statement associated with a loop, and is always true at (1) the begining of the loop, (2) the end of the loop body of every round, and (3) the end of the loop. The correctness of invariant conditions of a loop helps you to be confidence of the correctness of the loop itself. In the example, the invariant condition statement could be: "i is the number of how many numbers have been added to sum". You could easily check the correctness at the three timings of the loop, and thus the loop do the task for you: starting from i == 0, add i + 1 to sum for 100 times, with ++i as the increment after the addition every time.

I don't understand how to declare the "union semun"

union semun { // ... } test; or union semun { // ... }; semun test;

semun is the type name of the union, while test is a variable typed in semun.

How to install kde neon in ubuntu

KDE NEON itself is a distro like Ubuntu

Bro u mean i have to install whole kde as an new os...and all my files would be deleted

or apt-get install kubuntu-desktop

What will this do

Anthing good in kde