Write C program count total duplicate elements in an array
#include <stdio.h>
int main()
{
int arr[100];
int i, j, n, count = 0;
// Readinng size of the array
printf("Enter size of the array : ");
scanf("%d", &n);
//Reading elements of array
printf("Enter elements in array : ");
for(i=0; i<n; i++)
{
scanf("%d", &arr[i]);
}
//Find all duplicate elements in array
for(i=0; i<n; i++)
{
for(j=i+1; j<n; j++)
{
// If duplicate element found then increment count by 1
if(arr[i] == arr[j])
{
count++;
break;
}
}
}
printf("\nTotal number of duplicate elements found in array = %d", count);
return 0;
}Result
