The deque::rend() is an inbuilt function in C++ STL which returns a reverse iterator which points to the position before the beginning of the deque (which is considered its reverse end)....

The iswspace() is a built-in function in C/C++ which checks if the given wide character is a wide whitespace character or not. It is defined within the cwctype header file of C++. Syntax:...

The exp2() is a builtin function in C++ STL that computes the base-2 exponential function of a given number. It can also be written as 2num....

The multiset::empty() function is a built-in function in C++ STL which checks if the multiset is empty or not. It returns true if the multiset is empty, else it returns false....

std::partial_sort is used for sorting the range within the entire container. So, if we want to keep the original container intact and just copy the sorted sub-part of the container into another one, then for that purpose, we can use std::partial_sort_copy....

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std::is_sorted_until is used to find out the first unsorted element in the range [first, last). It returns an iterator to the first unsorted element in the range, so all the elements in between first and the iterator returned are sorted.It can also be used to count the total no. of sorted elements in the range. It is defined inside the header file . In case, the whole range is sorted, it will return an iterator pointing to last.It can be used in two ways as shown below:...

When we talk about Competitive Programming, we can’t ignore the significance of Mathematics here. Yes, it is true that one can get started with competitive programming without any mathematical background, but it is also an unbeatable fact that having good command over several specific mathematical concepts gives you the much-needed advantage over others while solving the programming problems. There are numerous maths concepts, formulas, and theorems that help you to solve the question while doing competitive programming within the necessary time constraints....

Given a string S of size N consisting of unique ID and Domain Name of a unique website, the task is to find the ID and the Domain Name in the given string if the ID is of the form [char, char, char, char, char, digit, digit, digit, digit, char]....

Given two binary strings A and B of length N, the task is to convert the string A to B by repeatedly flipping a prefix of A, i.e. reverse the order of occurrence of bits in the chosen prefix. Print the number of flips required and the length of all prefixes....

Oracle came to our campus in Sept 2020, for a server technology profile. All rounds were audio and video proctored. The entire interview process was on zoom meetings. It was a very smooth virtual experience. There were counter rooms inside zoom meetings for post and pre-interview sessions....

Given a number N. The task is to write a program to find the Nth term in the below series:...