Which of the following sorting algorithm is in-place?(a) intro sort(b) merge sort(c) counting sort(d) radix sortThe question was posed to me in an interview for internship.The question is from Sorting in portion Sorting of Data Structures & Algorithms II

Which of the following sorting algorithm is in-place?(a) intro sort(b)

1.	Which of the following sorting algorithm is in-place?(a) intro sort(b) merge sort(c) counting sort(d) radix sortThe question was posed to me in an interview for internship.The question is from Sorting in portion Sorting of Data Structures & Algorithms II
Answer» CORRECT option is (a) intro sort For explanation: INTROSORT may use quick sort or heap sort or insertion sort internally in order to sort the GIVEN INPUT. All of the three algorithms are in PLACE, thus making introsort to be an in-place sorting algorithm.

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