Problem C. 640. (October 2001)
C. 640. Subscribers can reach the text of the problem after signing in. The text will be public from October 15, 2001.]
(5 pont)
Deadline expired on November 15, 2001.
Statistics:
628 students sent a solution. 5 points: 415 students. 4 points: 83 students. 3 points: 44 students. 2 points: 11 students. 1 point: 34 students. 0 point: 41 students.
Problems in Mathematics of KöMaL, October 2001