In Vanya and Exams problem ,minimum of min(avg * n - sum, r - ai) will be added to the answer . But why do we subtract ( r — ai ) ? Anyone else please help me .
Thanks in advance
In Vanya and Exams problem ,minimum of min(avg * n - sum, r - ai) will be added to the answer . But why do we subtract ( r — ai ) ? Anyone else please help me .
Thanks in advance