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Category Archives: C++

Pairs in C++: The pair container is a simple container defined in <utility> header consisting of two data elements or objects. The first element is… Read More
Pre-requisite: unordered_set,  unordered_map  C++ provides std::unordered_set and std::unordered_map to be used as a hash set and hash map respectively. They perform insertion/deletion/access in constant average… Read More
 C++ offers its users a variety of functions, one of which is included in header files. In C++, all the header files may or may… Read More
In C++, a trigraph is a three-character sequence that represents a single character. It means that trigraph sequences are the set of three characters starting… Read More
Competitive Programming teaches one to find the easiest solution in the quickest way possible. And C++ has always been loved by almost all the competitive… Read More
The auto keyword in C++ specifies that the type of the variable that is being declared will be automatically deducted from its initializer. In case… Read More
Array within a Structure A structure is a data type in C/C++ that allows a group of related variables to be treated as a single… Read More
Standard Output Stream(cout): The C++ cout statement is the instance of the ostream class. It is used to display output on the standard output device… Read More
Forward List is a sequence container that allows unidirectional sequential access to its data. It contains data of the same type. In STL, it has… Read More
Short-circuiting is one of the optimization steps of the compiler, in this step unnecessary calculation is avoided during the evaluation of an expression. Expression is… Read More
Range-Based ‘for’ loops have been included in the language since C++11. It automatically iterates (loops) over the iterable (container). This is very efficient when used… Read More
C language has numerous libraries that include predefined functions to make programming easier. In C language, header files contain a set of predefined standard library… Read More
Pointers: A pointer is a variable that holds memory address of another variable. A pointer needs to be de referenced with * operator to access… Read More
Nowadays Java and C++ programming languages are vastly used in competitive coding. Due to some awesome features, these two programming languages are widely used in… Read More

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