Category: c / c++

Given a non-empty string s and an abbreviation abbr, return whether the string matches with the given abbreviation. A string such as “word” contains only the following valid abbreviations: …

Given two positive integers x and y, an integer is powerful if it is equal to x^i + y^j for some integers i >= 0 and j >= 0. …

How to Check if Any Three Points can Make a Triangle? There are many ways to check if any given three points in 2D plane can make a triangle. …

Let’s say our task is to convert a set or unordered_set in C++ to std::vector, what would you do? Given the following set with integers (or other types) unordered_set<int> …

Given the coordinates of four points in 2D space, return whether the four points could construct a square. The coordinate (x,y) of a point is represented by an integer …