C++ Algorithm Function find_end ()30 Aug 2024 | 2 min read C++ Algorithm find_end()function searches for the last occurrence of a pattern in the container, or say the last occurrence of a small portion of the sequence in the container. It basically searches the range specified by [first1,last1)for the occurrence of sequence which is defined by [first2,last2). If the occurrence is found, an iterator to the first element is returned, otherwise the last1 is returned. SyntaxParameterfirst1: It is a forward iterator to the first element in the range [first1, last1) where the element itself is included in the range. last1: It is a forward iterator to the last element in the range [first1, last1) where the element itself is not included in the range. first2: It is a forward iterator to the first element in the range [first2, last2) where the element itself is included in the range. last2: It is a forward iterator to the last element in the range [first2, last2) where the element itself is not included in the range. pred: It is a binary function that accepts two elements as arguments and performs the task designed by the function. Return valueThe function returns an iterator to the first element of the last occurrence of [first2,last2)in the range [first1,last1).In case the sequence is not found then the function returns last1 value. Example 1Output: patt1 is last found at the position 5 patt2 is last found at the position 3 Example 2Output: 11 ComplexityThe complexity of the function is specified by count2*(1+count1-count2. Here countX specifies the distance between the firstX and lastX. Data racesObjects in both ranges are accessed. ExceptionsThe function throws an exception if any of the argument throws one. Next TopicC++ Algorithm find_first_of Function |
C++ Algorithm Functions mismatch() C++ Algorithm mismatch() function compares both the containers to spot for any mismatch of values. The function returns the first element of both the containers that does not match. Syntax template<class InputIterator1, classInputIterator2> pair<InputIterator1, InputIterator2> mismatch(InputIterator1 first1, InputIterator2 first2> template<class InputIterator1, class InputIterator2, class BinaryPredicate> pair<InputIterator1,InputIterator2> mismatch(InputIterator1 first1,...
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C++ Algorithm transform() C++ Algorithm transform() function is used in two different ways: 1.unary operation:- This method performs unary operation op on the elements in range [first1, last1] and stores the result in range starting from result. This transform() applies a function to each element of a range: 2.Binary...
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C++ Algorithm Function count_if () C++ Algorithm count_if() function has a 'pred' value and returns the count of the elements in the range [first,last) for which the value of pred is true. Syntax template <class InputIterator, class UnaryPredicate> typename iterator_traits<InputIterator>::difference_type count_if(InputIterator first, InputIterator last,UnaryPredicate pred); Parameter first: It is an input iterator...
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C++ Algorithm max() C++ Algorithm max() function can be used in following 3 ways: It compares the two values passed in its arguments and returns the larger between them. If both are equal, then it returns the first one. It also compares the two values using a binary...
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C++ Algorithm remove() C++ Algorithm remove() function is used to eliminate all the elements that are equal to val from a given range [first, last) without disturbing the order of the remaining elements. This function cannot alter the size of the container. It returns an iterator to the...
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C++ Algorithm includes() C++ Algorithm includes() function returns true if every element from the sorted range [first2, last2) is found within the sorted range [first1, last1). It also returns true if [first2, last2) is empty. Elements are compared using operator < for the first version or using the given...
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C++ Algorithm sort() C++ Algorithm sort() function is used to sort the elements in the range [first, last) into ascending order. The elements are compared using operator < for the first version, and comp for the second version. Syntax default (1) template <class RandomAccessIterator> void sort (RandomAccessIterator first, RandomAccessIterator last); custom...
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C++ Algorithm reverse_copy() C++ Algorithm reverse_copy() function is used to copy the elements from the range[first, last) to another range beginning at result in such a way that the elements in the range are in reverse order. Syntax template <class BidirectionalIterator, class OutputIterator> OutputIterator reverse_copy (BidirectionalIterator first, BidirectionalIterator last, OutputIterator result); Note:...
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C++ Algorithm reverse() C++ Algorithm reverse() function is used to reverse the order of the elements within a range [first, last). Syntax template <class BidirectionalIterator> void reverse (BidirectionalIterator first, BidirectionalIterator last); Note: BidirectionalIterator is an iterator which is used to access any elements of a container in both forward and...
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C++ Algorithm is_sorted_until() C++ Algorithm is_sorted_until() function is used to find first unsorted element in the range. It means it returns an iterator to the first element in the range [first, last) which does not follow an ascending order. The elements are compared using operator < for...
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