#include <iostream> using namespace std; int main() { int A[6], n= 6, key; for(int i=0;i<n;i++){ cin>> A[i]; } cin>>key; for(int i=0;i<n;i++){ if(A[i]==key){ cout<<"found the key at index "<<i; return 0; } } cout<<"key is not found"; return 0; }