How can I select a random element in an std::set? I na开发者_运维技巧ively tried this: int GetSample(const std::set<int>& s) {
The following code does not work correctly. How should it be done co开发者_运维技巧rrectly? for (std::set<Color>::iterator i = myColorContainer.begin();
I have a few Set<String>s and want to transform each of these into a single String where each element of the original Set is separated by a whitespace \" \".
I have a class Foo which overrides equals() and hashCode() properly. I would like to also would like to use a HashSet<Foo> to keep track of \"canonical values\" e.g. I have a class that I would
If an object holds a unique primary key, what interfaces does it need to implement in order to be collection friendly especially in terms of being efficiently sortable, hashable, etc...?
I开发者_如何学C\'m looking to compare two sets and display the missing elements in second set by iterating over the first set.
I have the following code. It looks ugly, if the value equals to one of the following value then do something.
I\'ve been trying to set the value of a hidden field in a form using jQuery, but without success. Here is a sample code t开发者_运维知识库hat explains the problem. If I keep the input type to \"text
I am wondering what the rationale is behind having Java\'s Map.put(key, value) method overwrite equivalently key\'d values that are already in the collection, while Set.add(value) does not overwrite a
AFAIK, F# Map and set are implemented as red-black trees, so I guess that an iteration on these would be in-order traversal. I di开发者_如何学编程d some test and the iteration results are always sorte
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