Theres' No dispose question if you create the List immediately. If you choose the iterator path, you must deal with lifetime of the IEnumerator Now you dirilik easily print every number and its frequency by looping the dictionary. In fact you don´t even need Recently I saw a tutorial of https://c-panel-kullan-l-r11223.wikitidings.com/5699615/c_ienumerator_nedir_Üzerinde_bu_rapor_inceleyin