Probleme de sac a dos pdf

Probleme de sac a dos pdf Source google image: https://i1.rgstatic.net/publication/278796638_Propagation_de_couts_reduits_et_enumeration_implicite_pour_le_probleme_du_sac_a_dos_multidimensionnel_en_0-1/links/596c96a9458515e9afb566cc/largepreview.png

Erreur 440

Erreur 440 Source google image: https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/14015008963/original/g8Ow47L67eoFdCELXuOHgKB_wyWO3dZC4w.jpg?1493422231