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Discussion of Problem 1112. Cover

What the answer must be in case...
Posted by alex 26 Oct 2005 11:30
What the answer must be in case:
2
1 1
2 2

or

5
1 2
1 2
2 3
2 3
2 3

and what is the test #4

Edited by author 26.10.2005 11:35