Secventa de suma maxima(+indici)

int st , dr, Smax = -2000000000 , S = -1, start;
for(int i = 1 ; i <= n ; ++ i)
{
    if(S < 0)
        S = 0, start = i;
    S += A[i];
    if(S > Smax)
        Smax = S, st = start, dr = i;
}
cout << Smax << endl;
cout << st << " " << dr;