Magyar Information Contest Journal Articles

# Problem B. 4678. (January 2015)

B. 4678. Ann and Bill take turns writing digits on a sheet of paper, left to right. Ann starts with a nonzero digit, and they continue until a 100-digit number is formed. Bill wins if the resulting number divided by 11 leaves a remainder of 5, otherwise Ann wins. Both players are good at mathematics. Who will win the game?

Suggested by Gy. Károlyi, Budajenő

(4 pont)

Deadline expired on 10 February 2015.

### Statistics:

 176 students sent a solution. 4 points: 85 students. 3 points: 42 students. 2 points: 26 students. 1 point: 21 students. 0 point: 2 students.

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