2 docs tagged with "array"

An array is a collection of items stored at contiguous memory locations. It is a data structure that stores a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type.

Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.