2000 IMO Problems/Problem 3
Problem
Let be a positive integer and
a positive real number. Initially there are
fleas on a horizontal line, not all at the same point. We define a move as choosing two fleas at some points
and
to the left of
, and letting the flea from
jump over the flea from
to the point
so that
.
Determine all values of such that, for any point
on the line and for any initial position of the
fleas, there exists a sequence of moves that will take them all to the position right of
.
Solution
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See Also
2000 IMO (Problems) • Resources | ||
Preceded by Problem 2 |
1 • 2 • 3 • 4 • 5 • 6 | Followed by Problem 3 |
All IMO Problems and Solutions |