C. 786.

(5 points)

Deadline expired.

Statistics on problem C. 786. 305 students sent a solution. 5 points: 69 students. 4 points: 105 students. 3 points: 71 students. 2 points: 34 students. 1 point: 6 students. 0 point: 14 students. Unfair, not evaluated: 6 solutions.