To find duplicate elements in an array using a C program,you can use nested loops or hash sets. I’ll provide you with a simple example using nested loops. Here’s a sample program.
Program :
#include<stdio.h>
#include<conio.h>
void main()
{
int i,arr[20],j,no;
printf(“Enter size of array: “);
scanf(“%d”,&no);
printf(“Enter any %d elements in array: “,no);
for(i=0;i<no;i++)
{
scanf(“%d”,&arr[i]);
}
printf(“Duplicate elements are: “);
for(i=0; i<no; i++)
{
for(j=i+1;j<no;j++)
{
if(arr[i]==arr[j])
{
printf(“%d\n”,arr[i]);
}
}
}
getch();
}
Output :
