C. 725.

(5 points)

Deadline expired.

Statistics on problem C. 725. 854 students sent a solution. 5 points: 102 students. 4 points: 62 students. 3 points: 46 students. 2 points: 267 students. 1 point: 340 students. 0 point: 29 students. Unfair, not evaluated: 8 solutions.