{"id":10730,"date":"2021-09-30T12:30:32","date_gmt":"2021-09-30T07:00:32","guid":{"rendered":"https:\/\/python-programs.com\/?p=10730"},"modified":"2021-11-22T18:34:38","modified_gmt":"2021-11-22T13:04:38","slug":"python-program-to-find-majority-element-boyer-moore-majority-vote-algorithm","status":"publish","type":"post","link":"https:\/\/python-programs.com\/python-program-to-find-majority-element-boyer-moore-majority-vote-algorithm\/","title":{"rendered":"Python Program to Find majority element (Boyer\u2013Moore Majority Vote Algorithm)"},"content":{"rendered":"

Don’t miss the chance of Java programs examples with output pdf free download<\/a> as it is very essential for all beginners to experienced programmers for cracking the interviews.<\/p>\n

Given a list, the task is to find the majority element of the given list.<\/p>\n

Majority Element:<\/strong><\/p>\n

A majority element appears more than n\/2 times, where n is the size of the array.<\/p>\n

Boyer\u2013Moore Majority Vote Algorithm History and Introduction:<\/strong><\/p>\n

The Boyer\u2013Moore majority vote algorithm uses linear time and constant space to determine the majority of a series of elements. It is named after Robert S. Boyer and J Strother Moore, who published it in 1981, and is an example of a streaming algorithm.<\/p>\n

In its most basic version, the algorithm looks for a majority element, which is an element that appears frequently for more than half of the items in the input. A version of the procedure that performs a second pass through the data can be used to confirm that the element found in the first pass is truly a majority.<\/p>\n

If no second pass is conducted and there is no majority, the algorithm will not identify that there is no majority. In the absence of a rigorous majority, the returned element can be random; it is not guaranteed to be the most frequently occurring element (the mode of the sequence). A streaming method cannot discover the most frequent element in less than linear space for sequences with a limited number of repetitions.<\/p>\n

Program to Find majority element (Boyer\u2013Moore Majority Vote Algorithm)<\/h2>\n

Below is the full approach for finding the majority element present in the given array using Boyer-Moore Majority Vote Algorithm.<\/p>\n