My issue
can you tell what is required to remove compilation error
My code
#include <iostream>
#include <vector>
using namespace std;
int main() {
// your code goes here
int t;
cin>>t;
while(t--){
int n;
cin>>n;
int arr[n];
for(int i=0;i<n;i++){
cin>>arr[i];
}
sort(arr,arr+n,greater<int>());
for(int i=0;i<n-1;i++){
if(arr[i+1]==arr[i]){
continue;
}
cout<<arr[i]+arr[i+1]<<endl;
break;
}
}
return 0;
}
Learning course: Arrays using C++
Problem Link: CodeChef: Practical coding for everyone