Electronics and Computer Engineering: A Fast Majority Vote Algorithm (Moore's Majority Algorithm)



The problem can be solved using Majority Vote Algorithm.
Here, we use two variable to find out the majority. The total comparisons required for this algorithm is 2*n.
There are two variables count and c.
count= total number of vote for the candidate
c= particular candidate
Now, go through the votes one by one in the following fashion
Step 0: Initialize count to be zero
Step 1: Go through the vote
           i. Check if the count is zero
                    if so then assign the c to this vote's candidate and then set count=1
                    if not then check if this vote's candidate is equal to c
                                  if yes then set count+=1
                                  if no then set count-=1
Step 2: Continue until the end
Step 3: Now, return c
Step 4: Check once again by going through the votes if it is really the majority

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