Question

What is the use of includes function in c++?

(a) Compares two ranges of data

(b) Compares two sorted ranges of data

(c) Includes a new element in the range

(d) Includes a new element in the end

This question was posed to me in class test.

This interesting question is from C Style Algorithms topic in section Algorithms, Objects & Iterators in C++ of C++

Answer 1

Right answer is (b) Compares two sorted ranges of data

To explain I would say: Returns true if the first sorted range contains all the elements in the second sorted range.