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C++ algorithm Library


C++ algorithm Library

The <algorithm> library has many functions that allow you to modify ranges of data from data structures.

A list of useful functions in the algorithm library can be found below.

Function Description
adjacent_find() Finds a pair of consecutive elements with the same value in a data range
all_of() Checks if all of the elements in a data range match a condition
any_of() Checks if at least one element in a data range matches a condition
binary_search() An efficient algorithm for finding if a value exists in a sorted data range
copy() Copies the values from a data range into a different data range
count() Counts the number of times that a value occurs in a data range
count_if() Counts the number of elements in a data range that match a condition
fill() Writes a value into every element of a data range
find() Finds the first element of a data range with a specified value
find_first_of() Finds the first element of a data range which matches one of several specified values
find_if() Finds the first element of a data range which matches a condition
find_if_not() Finds the first element of a data range which does not match a condition
for_each() Runs a function on every element in a data range
includes() Checks if all of the values in a sorted data range exist in another sorted data range
is_permutation() Checks if a data range is a permutation of another
is_sorted() Checks if a data range is sorted
is_sorted_until() Finds the position in a data range at which elements are no longer sorted
lower_bound() Finds the first element at or above a specified lower bound in a sorted data range
max_element() Finds the element with the highest value in a data range
merge() Merges the values of two data ranges into a new data range
min_element() Finds the element with the lowest value in a data range
none_of() Checks if none of the elements in a data range match a condition
random_shuffle() Randomly rearranges the elements in a data range
replace() Replaces all occurrences of a value in a data range with a different value
replace_copy() Creates a copy of a data range with all occurrences of a specified value replaced with a different value
replace_copy_if() Creates a copy of a data rage where all values that match a condition are replaced with a different value
replace_if() Replaces all values in a data range that match a condition with a different value
reverse() Reverses the order of elements in a data range
reverse_copy() Creates a copy of a data range with the elements in reverse order
search() Finds a specified sequence of values in a data range
sort() Sorts the values of a data range in ascending order
swap() Swaps the values of two variables
swap_ranges() Swaps the values of two data ranges of the same size
upper_bound() Finds the first element above a specified upper bound in a sorted data range

Learn more about algorithms in our C++ Algorithm Tutorial.



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