Which of the following is correct about Input Iterators?(a) They cannot be decremented(b) Cannot be used in multi-pass algorithms(c) Can only be incremented(d) All of the mentionedI had been asked this question during an interview.This intriguing question originated from Iterators in portion Algorithms, Objects & Iterators in C++ of C++

Which of the following is correct about Input Iterators?(a) They canno

1.	Which of the following is correct about Input Iterators?(a) They cannot be decremented(b) Cannot be used in multi-pass algorithms(c) Can only be incremented(d) All of the mentionedI had been asked this question during an interview.This intriguing question originated from Iterators in portion Algorithms, Objects & Iterators in C++ of C++
Answer» The CORRECT OPTION is (d) All of the mentioned Best EXPLANATION: Input ITERATORS can only be incremented and as it cannot be decremented it can be used in single-pass algorithms only.

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