From the course: C# Hands-on Practice with Data-Structures
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Solution: Find the majority element - C# Tutorial
From the course: C# Hands-on Practice with Data-Structures
Solution: Find the majority element
Let's find the majority element in a given list. If the list does not have any items, then there is no majority element. This means we'll return negative one. For this solution, we'll be using the Boyer-Moore Voting Algorithm. This is a well-known algorithm for finding the majority elements, where the majority element is defined as the element that appears more than half the time in the list. The algorithm maintains a candidate for the majority element and a count to keep track of its occurrences. It operates in two phases: finding a candidate, and then verifying that the candidate is indeed the majority element. Let's start with the first part: finding a candidate. We'll iterate through the list of items. If the number at a given index equals the candidate, we'll increment the count. Otherwise, we'll decrement the count. If the count is zero, we'll discard the current candidate and then set the item at this index to be the next candidate. If the current element matches the candidate,…
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