Function main

Recursion/Homework/reverse.cpp:18–31

    }
}
int main() {
    int t;
    cin>>t;
    while(t--){
        cin>>n;
        int s[n];
        for (int i=0;i<n;i++){
            cin>>s[i];
        }
        helper(s,0,n-1);
    	//code
    }
	return 0;
}