The minimum number of lessons is equal to 2 in 1 morning or afternoon in the mor

[ngoctp29121982]

in the morning-afternoon mode.  I have a lot of teachers who teach 1 morning class =1+2 and 1 afternoon class =1+1+1.  How can I ignore those teachers in the XML file.  Your FET.  The problem is difficult, why don't you put it in the official version

[Liviu Lalescu]

Because the solution to this problem is also difficult. I cared more about the algorithm.