18. Explain the following sort algorithms with a suitable example. (a) nth_element() (b) partial_sort() (c) partial_sort_copy() (d) sort() (e) stable_sort() 19. Describe how the heap operation...

18. Explain the following sort algorithms with a suitable example.

(a) nth_element() (b) partial_sort() (c) partial_sort_copy()

(d) sort() (e) stable_sort()

19. Describe how the heap operation algorithms are constructed in C++.

20. Summarise the list of comparison algorithms used in STL.

21. Explain the following numeric algorithm with a suitable example.

(a) accumulate() (b) adjacent_difference()

(c) inner_product() (d) partial_sum()

22. Explain the importance of function objects in C++.