C Exercises: Find the majority element of an array
C Array: Exercise-33 with Solution
Write a program in C to find the majority element of an array.
A majority element in an array A[] of size n is an element that appears more than n/2 times (and hence there is at most one such element).
Pictorial Presentation:

Sample Solution:
C Code:
#include <stdio.h>
void findMajElem(int *arr1, int n)
{
int i,IndexOfMajElem = 0, ctr = 1;
for(i = 1; i < n; i++)
{
if(arr1[IndexOfMajElem] == arr1[i])
ctr++;
else
ctr--;
if(ctr == 0) {
IndexOfMajElem = i;
ctr = 1;
}
}
ctr = 0;
for (i = 0; i < n; i++)
{
if(arr1[i] == arr1[IndexOfMajElem])
ctr++;
}
if(ctr > (n/2))
printf("Majority Element : %d\n", arr1[IndexOfMajElem]);
else
printf("There are no Majority Elements in the given array.\n");
}
int main()
{
int i, ctr,m;
int arr1[] = { 4, 8, 4, 6, 7, 4 , 4, 8};
ctr = sizeof(arr1)/sizeof(arr1[0]);
printf("The given array is : ");
for(i = 0; i < ctr; i++)
{
printf("%d ", arr1[i]);
}
printf("\n");
findMajElem(arr1, ctr);
return 0;
}
Sample Output:
The given array is : 4 8 4 6 7 4 4 8 There are no Majority Elements in the given array.
Flowchart :

C Programming Code Editor:
Improve this sample solution and post your code through Disqus.
Previous: Write a program in C to find a pair with given sum in the array.
Next: Write a program in C to find the number occurring odd number of times in an array.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
C Programming: Tips of the Day
C Programming - What is the argument for printf that formats a long?
Put an l (lowercased letter L) directly before the specifier.
unsigned long n; long m; printf("%lu %ld", n, m);
Ref : https://bit.ly/3dIwfkP
- Weekly Trends
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join
- JavaScript functions Exercises
- Python Tutorial
- Python Array Exercises
- SQL Cross Join
- C# Sharp Array Exercises