C. 772.

(5 points)

Deadline expired.

Statistics on problem C. 772. 721 students sent a solution. 5 points: 332 students. 4 points: 145 students. 3 points: 67 students. 2 points: 25 students. 1 point: 74 students. 0 point: 68 students. Unfair, not evaluated: 10 solutions.