scelta | Syntactic sugar for variant and optional types | File Utils library

my program first asks how many names I want to insert then it stores those names in an array. Now in case 5 and void inserisci I am supposed to develop something that asks you which one of the names you entered you want to change and then what you want to change it to. Thing is, I have no idea how, I've been thinking about this for a while but just can't figure it out. Any help is appreciated, thanks!

I want to implement a system in which if the user types domain/crypt/text (the page where the text gets crypted), the text is available to read in the main page (domain). I've found out the problem is that when I change the URL to check the main page datas gets resetted since I'm loading once again the page, but I can't find any solution to this problem.

I don't know why when I have the second selection in the div it makes me do it in line. I would like (see image) that she would go side by side instead.

I added the comment in the part to be moved.

I was trying to make my first java program with the use of switches and scanners, but I just can’t fix the error that returns me.

Error:

Hi I have a problem regarding the creation of a method that manages the visibility of a button present in a fragment and manage it from Mainactivity, I tried with the simple .setVisibility and it returned the error of null object, therefore it did not hide the button in a condition dictated by me below I show you the code:

MainActivity:

I would like to know if it is possible to make a comment inside an Rnw file exercise so that something can be completely ignored by both R and LaTeX. This would be useful for me to have some flexibility building exercises.

In particular, I would like to make a multiple choice question with five options where two true statements and two wrong statements are given and another statement is chosen at random between a true statements and two wrong statements. Trying to acheive this as in http://www.r-exams.org/templates/boxplots/ turns out to be quite difficult for me because all these statements involve LaTeX coding so I have problems inserting it in a R chunck. So I have tried something different, but I get an error saying that the length of exsolution and questionlist does not match. Perhaps, there is some way to make the commenting works.

When i try compiling my C++ code, it compiles it but when i try answering the std::cin, it just gives me back the things that i wrote before like if i wrote std::string x; std::cout << "Hello World\n; std::cin >> x if(x == "Hello World") { std::cout << "Hello"; }, but when i compile it returns Hello World (Cin answering space) Hello World so it returns just the first line here is the image of the problem, and as you can see the compiler just copy the first std::cout and doesn't go and if you'd to see my code here it is

I have to create a list where each node contains the information of a game. Data are acquired by keyboard. So I have to create an insert function(inserisciTestaLista) in the list,but when I run the program stops. I have no compilation errors. This's output:

I was trying to parallelize a code in Fortran using openMP, with this code: