Algorithm Library in C++

Updated April 3, 2023

Introduction to Algorithm Library in C++

The library defines a large number of specific functions to be used in various elements at a time or a range.  Like any other language, C++ also has a wide range of functions in a library. In this article, we are going to see the Algorithm library in C++. The algorithm library contains various functions, each has its own purpose. Let’s discuss those functions.

C++ Algorithm Library Functions

C++ algorithm library functions can be categorized into 4 different parts as follows:

• Modifying Sequence Operations
• Non-Modifying Sequence Operation
• Sorting Sequence Operations
• Heap Sequence Operation

Let’s discuss them in detail.

1. Modifying Sequence Operations

Some Modifying algorithm functions are given as follows:

1. Copy: This function will copy the range of the element
2. copy_n: This function will copy the n elements of the range
3. copy_if: If a certain condition is met, the function copies the elements of the set.
4. copy_backward: This function copies the element in a backward manner
5. move: This function moves the range of the element
6. move_backward: This function moves the range of elements in a backward manner
7. swap: The function switches between the value of two objects.
8. swap_ranges: This function will swap the Value of two different range
9. iter_swap: The variable flips the related values of two iterators.
10. Transform: All values are converted into an array by this function.
11. Replace: In the range, this function will replace the value with the help of specific Value
12. replace_if: If a certain condition is met, the function replaces the value of the array.
13. replace_copy: The function copies the value range by replacing the element.
14. replace_copy_if: If a certain condition is met, this function copies the range of values by replacing them by an element.
15. Fill: The function fills the value with a value in the array.
16. fill_n: This function fills the value in the Sequence manner
17. generate: This function will generate the value for the range
18. generate_n: This function is used to produce sequence values.
19. Remove: This function is used to remove the value from the range
20. remove_if: If a condition is achieved, the function removes the values from the range.
21. remove_copy: By removing it, the function copies the values of the range.
22. remove_copy_if: If a condition is fulfilled, the function copies the values of the array.
23. Unique: This function will Identify the unique element of the range
24. unique_copy: The function copies the Unique elements of the set.
25. Reverse: This Function reverses the range of the element
26. reverse_copy: The function reverse values to copy the range.
27. Rotate: The feature rotates the array elements to the left.
28. rotate_copy: It copies the elements of the left rotating array.
29. random_shuffle: In this function, the range randomly shuffles
30. shuffle: With the help of a generator the function forms the array randomly.

2. Non-Modifying Sequence Operation

Some non-modifying algorithm functions are given as follows:

1. all_of: The following function checks all elements of the array for one condition.
2. any_of: The following feature checks certain elements in the array or some of them
3. none_of: This function will check if none of the elements followed the condition of not followed
4. for_each: The function applies the operation to all scope components.
5. Find: This function will find the value in the range
6. find_if: Finds the function for an element in the range.
7. find_if_not: The function finds a component within the range but the other way around as above.
8. find_end: The function is used to return the range’s last component.
9. find_first_of: For the item that satisfies a condition, the function finds and occurs at first.
10. adjacent_find: This function search and finds the equal and adjacent element in the range
11. count: In the range, this function returns the count value.
12. count_if: The function returns the number of values that a condition satisfies.
13. Mismatch: The function returns the value of the first mismatch in sequence.
14. Equal: This function is used to check whether two different ranges have equal elements or not.
15. is_permutation: The function tests whether the reference set is another array permutation.
16. Search: In the range the function search for the subsequence.
17. search_n: The function is scanning the scope for an item to occur.

3. Sorting Sequence Operations

Some Sorting algorithm functions are given as follows:

1. Sort: In the range, this function is used to sort all the elements.
2. stable_sort: The role sorts the elements in the array to preserve the corresponding range.
3. partial_sort: The role sorts the elements in the array in part.
4. partial_sort_copy: After Sorting the function copy all the element
5. is_sorted: This function will check all the ranges are sorted or not
6. is_sorted_until: The function checks until a range is sorted for which element.
7. nth_element: This function is used to sort the elements in the range

Binary Search Sequence Operations:

1.  lower_bound: Returns the lower border of the range feature.
2. Upper_bound: Returns the range’s upper limit component.
3. equal_range: The function gives the same elements to the subrange.
4. binary_search: The feature will check whether or not values in the array are sorted.

Merge Sequence Operation:

1. merge: The function fuses two ranges in a sorted sequence.
2. inplace_merge: Two consecutive sets are mixed, which can be sorted.
3. Includes: The function checks whether or not the sorted range covers a different range.
4. set_union: The role returns to the two-sortiment group.
5. set_intersection: The method returns the ordered intersection between two sets.
6. set_difference: The method returns the two-sorted difference.
7. set_symmetric_difference: The function returns the two-sortiment symmetric difference.

4. Heap Sequence Operation

Some Heap algorithm functions are given as follows:

1. push_heap: The function pushes the heap with new elements.
2. pop_heap: New elements appear in the heap of the variable.
3. make_heap: The feature is used to create a heap.
4. sort_heap: This Function is used to heap the sort
5. is_heap: The function verifies if the range is a heap.
6. is_heap_until: The function checks until the position of a heap is determined.

Recommended Articles

This is a guide to Algorithm Library in C++. Here we discuss the C++ algorithm library functions which include modifying sequence operations, non-modifying sequence operation, and sorting sequence operations. You may also look at the following articles to learn more –

1. Mean Shift Algorithm Clustering
2. Gradient Boosting Algorithm
3. Classification Algorithms
4. Types of Symmetric Algorithms