Category: c / c++

A robot on an infinite grid starts at point (0, 0) and faces north. The robot can receive one of three possible types of commands: -2: turn left 90 …

On an 8×8 chessboard, there can be multiple Black Queens and one White King. Given an array of integer coordinates queens that represents the positions of the Black Queens, …

We talked about sorting (unstable and stable) algorithms implemented in C++ STL. The STL algorithm header also provides the is_sorted_until() and is_sorted() which returns the first out-of-order element in …

A rectangle is represented as a list , where (x1, y1) are the coordinates of its bottom-left corner, and (x2, y2) are the coordinates of its top-right corner. Two …

C++ algorithm header provides you access to next_permutation() and prev_permutation() which can be used to obtain the next or previous lexicographically order. With an array or vector or string …