simple program using linear search algorithm in data structure

 #include<iostream>

using namespace std;

int main()

{

int search,len,count;

cout<<"enter length of arr:";

cin>>len;

int arr[len];

cout<<"please enter the element in array:"<<endl;

for(int i=0;i<len;i++)

{

cin>>arr[i];

}

cout<<"please search element from array:";

cin>>search;

for(int i=0;i<len;i++)

{

if(arr[i]==search)

{

  cout<<"element found on index "<<i<<endl;

  count++;

}

}

}