If you actually want an array and not a vector, and you want that array dynamically sized at runtime, you would need to create it on the heap (storing it in a pointer), and free it when you’re done. Coming from Java you need to understand that there’s no garbage collection in C++ – anything … Read more
If you are not satisfied with lists (because they can contain anything and take up too much memory) you can use efficient array of integers: See here If you need to initialize it,
It is a small error. arr= (one two three) should’ve been arr=(one two three) Also you can’t use \n in echo. Use printf if you want to use \n. And fixing the rest of the errors, the code looks like this.
Your data homes is an array, so you would have to iterate over the array using Array.prototype.map() for it to work.
I have to ask a question in return: is your GenSet “checked” or “unchecked”? What does that mean? Checked: strong typing. GenSet knows explicitly what type of objects it contains (i.e. its constructor was explicitly called with a Class<E> argument, and methods will throw an exception when they are passed arguments that are not of type E. See Collections.checkedCollection.-> in that case, you should … Read more
A() is not modifying nums to point at the new array. Even if it were, it is deleting the new array, so nums would end up pointing at invalid memory. You need to declare the arr parameter as a reference, and delete the old array instead of the new array: For what you are attempting, I think you have too much indirection. … Read more
Like this: or (The latter syntax can be used in assignments other than at the point of the variable declaration, whereas the shorter syntax only works with declarations.)
Compute the discrete cumulative density function (CDF) of your list — or in simple terms the array of cumulative sums of the weights. Then generate a random number in the range between 0 and the sum of all weights (might be 1 in your case), do a binary search to find this random number in … Read more
It’s not ignoring the values returned, you aren’t assigning them to variables.