Statistics on problem K. 6.  300 students sent a solution.  
6 points:  151 students. 
5 points:  27 students. 
4 points:  23 students. 
3 points:  20 students. 
2 points:  11 students. 
1 point:  5 students. 
0 point:  54 students. 
Unfair, not evaluated:  9 solutions. 

