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majority.cpp
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// C++ program to find Majority
// element in an array
#include <bits/stdc++.h>
using namespace std;
// Function to find Majority element
// in an array
void findMajority(int arr[], int n)
{
int maxCount = 0;
int index = -1; // sentinels
for (int i = 0; i < n; i++) {
int count = 0;
for (int j = 0; j < n; j++) {
if (arr[i] == arr[j])
count++;
}
// update maxCount if count of
// current element is greater
if (count > maxCount) {
maxCount = count;
index = i;
}
}
// if maxCount is greater than n/2
// return the corresponding element
if (maxCount > n / 2)
cout << arr[index] << endl;
else
cout << "No Majority Element" << endl;
}
// Driver code
int main()
{
int arr[] = { 1, 1, 2, 1, 3, 5, 1 };
int n = sizeof(arr) / sizeof(arr[0]);
// Function calling
findMajority(arr, n);
return 0;
}