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design a stack such that getMinimum( ) should be O(1)
This is one of an interview question. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack.
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What's the best mock framework for Java? [closed]
...o removes this, also has a cleaner syntax as it looks like readability was one of its primary goals. I cannot stress enough how important this is, since most of developers will spend their time reading and maintaining existing code, not creating it.
Another nice thing is that interfaces and implem...
RAII and smart pointers in C++
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// No need to close it - destructor will do that for us
This cannot be done in Java since there's no guarantee when the object will be destroyed, so we cannot guarantee when a resource such as file will be freed.
Onto smart pointers - a lot of the time, we just create objects on the stack. For i...
Increase modal size for Twitter Bootstrap
... Just to clarify, if you only want to set the size of a specific modal, one can do this: #modal_ID .modal-dialog { width: 800px }
– Greg A
Jun 22 '17...
How to make a query with group_concat in sql server [duplicate]
... know that in sql server we cannot use Group_concat function but here is one issue i have in which i need to Group_Concat my query.I google it found some logic but not able to correct it.My sql query is
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Exclude all transitive dependencies of a single dependency
...t contains an "app" module that is referenced in two WAR-packaged modules. One of those WAR-packaged modules really only needs the domain classes (and I haven't separated them out of the app module yet). I found this to work:
<dependency>
<groupId>${project.groupId}</groupId>
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Best way to trim strings after data entry. Should I create a custom model binder?
...ollerContext,
ModelBindingContext bindingContext,
System.ComponentModel.PropertyDescriptor propertyDescriptor, object value)
{
if (propertyDescriptor.PropertyType == typeof(string))
{
var stringValue = (string)value;
if (!string.IsNullOrWhiteSpace(string...
Difference between ObservableCollection and BindingList
...any add/delete change in Source, but I actually do not know when to prefer one over the other.
4 Answers
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What's the use of ob_start() in php?
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Great explanation. I would go one step further and replace ob_get_contents() with ob_get_clean() and remove ob_end_clean() since ob_get_clean() essentially performs both functions. Reference: php.net/manual/en/function.ob-get-clean.php (PHP 4 >= 4.3.0,...
Is it correct to use JavaScript Array.sort() method for shuffling?
... the algorithm, pick a random unshuffled element (which could be the first one) and swap it with the first unshuffled element - then treat it as shuffled (i.e. mentally move the partition to include it).
This is O(n) and only requires n-1 calls to the random number generator, which is nice. It also ...