pentru j de la i la 1
    cost_stocare = cost_stocare + S[j] * dtotal
    dtotal = dtotal + D[j]

    cost_productie = F[j] + C[j]    dtotal

    cost_productie = F[j] + C[j] * dtotal

    cost_total = cmin[j-1] + cost_productie + cost_stocare
    daca cost_total < cmin[i] atunci
      cmin[i]=cost_total