InterviewSolution

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51.	What is the use of adapter in STL in c++?(a) To provide interface(b) To manipulate the data(c) To extract the data(d) To delete the dataI had been asked this question in examination.The origin of the question is Sequences and Containers topic in division Algorithms, Objects & Iterators in C++ of C++
Answer» Right choice is (a) To provide interface The EXPLANATION is: ADAPTERS are data TYPES from STL that adapt a container to provide specific interface.

52.	Pick out the correct method in the c++ standard library algorithm.(a) mismatch(b) maximum(c) minimum(d) maxmatchI got this question during an internship interview.This intriguing question comes from Standard Library Algorithms topic in chapter Algorithms, Objects & Iterators in C++ of C++
Answer» RIGHT OPTION is (a) mismatch Best EXPLANATION: It is a method in the search OPERATION in standard library algorithms.

53.	Subsequent elements are moved in terms of _____ when an element in inserted in vector?(a) Assignment Operator(b) Copy constructor(c) Both assignment operator and copy constructor(d) destructorI have been asked this question in exam.The doubt is from Sequences and Containers in chapter Algorithms, Objects & Iterators in C++ of C++
Answer» Right option is (c) Both assignment operator and copy constructor The explanation: The VECTOR MAINTAINS a CERTAIN order of its elements, so that when a new ELEMENT is INSERTED at the beginning or in the middle of the vector, Subsequent elements are moved backwards in terms of their assignment operator or copy constructor.

54.	How many kind of operation can be applied to transform method in c++?(a) 1(b) 2(c) 3(d) 4This question was posed to me in a national level competition.My question comes from Modifying Sequence Algorithms topic in chapter Algorithms, Objects & Iterators in C++ of C++
Answer» CORRECT ANSWER is (b) 2 To EXPLAIN I WOULD say: There are two kinds of operations. They are UNARY and binary operation.

55.	To what kind of elements does non-modifying sequence algorithm can be applied?(a) Range(b) Vector(c) List(d) MethodsI had been asked this question during an interview for a job.My doubt is from Non Modifying Sequence Algorithms topic in section Algorithms, Objects & Iterators in C++ of C++
Answer» The correct ANSWER is (a) Range The EXPLANATION is: Non-modifying sequence algorithm can be APPLIED to list and vector for example the “FIND” function can be applied to list and vector.

56.	What does the size of the vector refers to in c++?(a) Size of vector(b) Type of vector(c) Number of elements(d) Name of vectorI got this question during an interview.Enquiry is from Sequences and Containers topic in section Algorithms, Objects & Iterators in C++ of C++
Answer» CORRECT answer is (c) Number of ELEMENTS Easiest EXPLANATION - In vectors, by size we mean the number of elements in that vector array.

57.	What kind of object is modifying sequence algorithm?(a) Function template(b) Class template(c) Method(d) IteratorThe question was posed to me in an international level competition.Question is from Modifying Sequence Algorithms topic in chapter Algorithms, Objects & Iterators in C++ of C++
Answer» CORRECT ANSWER is (a) Function template Explanation: It is a group of FUNCTIONS and implemented under algorithm HEADER file.

58.	What is the use of make_heap in the heap operation?(a) Rearrange a heap(b) Deform a heap(c) Form a heap(d) Delete a heapThe question was asked in quiz.I'm obligated to ask this question of Standard Library Algorithms in division Algorithms, Objects & Iterators in C++ of C++
Answer» CORRECT OPTION is (C) FORM a heap Explanation: It is used to rearranges a range so that it becomes a heap.

59.	How the sequence of objects can be accessed?(a) Iterators(b) Pointers(c) Both Iterators & Pointers(d) LibraryThe question was posed to me in an interview for job.Enquiry is from Modifying Sequence Algorithms topic in division Algorithms, Objects & Iterators in C++ of C++
Answer» RIGHT choice is (c) Both Iterators & Pointers Easy explanation - A range is any sequence of OBJECTS that can be accessed through iterators or pointers, such as an ARRAY or an instance of some of the STL containers.

60.	What is the use of middle parameter in the rotate method?(a) Marks the begining of a sequence(b) Marks the ending of a sequence(c) Marks the elements in a sequence(d) Marks the digits in a sequenceI have been asked this question during an online interview.The question is from Modifying Sequence Algorithms in chapter Algorithms, Objects & Iterators in C++ of C++
Answer» Right answer is (c) Marks the elements in a sequence To explain: Forward ITERATOR POINTING to the element within the range and that can be MOVED to the FIRST position in the range.

61.	What is the header file used for declaring the standard library algorithms?(a) container(b) algorithm(c) library(d) iteratorThe question was posed to me during an internship interview.Question is taken from Standard Library Algorithms in division Algorithms, Objects & Iterators in C++ of C++
Answer» RIGHT choice is (b) algorithm Easiest explanation - C++ Standard Library, algorithms are components that PERFORM ALGORITHMIC operations on containers and other sequences. For this OPERATION, We have to USE header file.

62.	What is meant by sequence point?(a) Represent the point of execution in the program(b) Represent the whole program(c) Represent the beginning of the program(d) Represent the end of the programThe question was asked by my school principal while I was bunking the class.My question is based upon Stored Sequences topic in section Algorithms, Objects & Iterators in C++ of C++
Answer» Correct CHOICE is (a) Represent the point of execution in the program The explanation: A sequence point defines any point in a COMPUTER program’s execution at which it is guaranteed that all side effects of previous EVALUATIONS have been performed.

63.	What kind of iteration does forward_list provide in C++?(a) Uni-directional(b) Bi-directional(c) Multi-directional(d) Bi-directional & Multi-directionalI have been asked this question in exam.I would like to ask this question from Sequences and Containers topic in chapter Algorithms, Objects & Iterators in C++ of C++
Answer» CORRECT option is (a) Uni-directional Easiest explanation - The forward_list USES singly linked list hence it is uni-directional. In the forward_list, the container provides insertion and removal at ANYWHERE in the PROGRAM.

64.	What is the type of the first item in the heap?(a) Bigger than others(b) Lower than others(c) Mean value of the heap(d) Equal to othersThis question was posed to me during an internship interview.The question is from Standard Library Algorithms topic in section Algorithms, Objects & Iterators in C++ of C++
Answer» The correct option is (a) Bigger than OTHERS Explanation: In C++, when we say HEAP we mean max heap and first element of max is bigger than others.