You’re modifying the list while you iterate over it. That means that the first time through the loop, i == 1, so 1 is removed from the list. Then the for loop goes to the second item in the list, which is not 2, but 3! Then that’s removed from the list, and then the … Read more
I think the 2009 paper “Pairs do not make good ranges” by Alisdair Meredith is at least part of the answer. Basically, many algorithms return pairs of iterators that are actually not guaranteed to be valid ranges. It seems they removed the support for pair<iterator,iterator> from the for-range loop for this reason. However, the proposed … Read more
Having spent my fair share of time mucking around with … well, time…I can tell you that I’d prefer to let someone else do the work for me. To that end, if you’re will to give it a go, I’d take a look at JodaTime Basically, what this example does it creates a series of … Read more
In case you want the sample to follow a uniform distribution, the problem reduces to generate N random numbers with sum = 1. This, in turn, is a special case of the Dirichlet distribution but can also be computed more easily using the Exponential distribution. Here is how: Take a uniform sample v1 … vN … Read more
Here is my implementation of caretRangeFromPoint for old browsers: if (!document.caretRangeFromPoint) { document.caretRangeFromPoint = function(x, y) { var log = “”; function inRect(x, y, rect) { return x >= rect.left && x <= rect.right && y >= rect.top && y <= rect.bottom; } function inObject(x, y, object) { var rects = object.getClientRects(); for (var i … Read more
I would use enumerate as it’s more generic – eg it will work on iterables and sequences, and the overhead for just returning a reference to an object isn’t that big a deal – while xrange(len(something)) although (to me) more easily readable as your intent – will break on objects with no support for len…
You can create an array with a range like this: var values = Array(0…100) This give you an array of [0, …, 100]
The expression: ($min <= $value) && ($value <= $max) will be true if $value is between $min and $max, inclusively See the PHP docs for more on comparison operators
Updated for Swift 4 Swift ranges are more complex than NSRange, and they didn’t get any easier in Swift 3. If you want to try to understand the reasoning behind some of this complexity, read this and this. I’ll just show you how to create them and when you might use them. Closed Ranges: a…b … Read more