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Contradiction of constraints in problem 580D div 2
Hi Codeforces,
In problem "Kefa and Dishes" (580D div 2), statements said that: "It is guaranteed that there are no such pairs of indexes i and j (1 ≤ i < j ≤ k), that xi = xj and yi = yj."
But in the 5th test case:
7 4 3 2 6 13 5 7 1 9 6 1 15 2 5 3 6 4 8
It's easy to see that x1 = x3. Was this test case invalid?
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en5 |
|
Futymy | 2017-12-18 08:58:45 | 3 | ||
| en4 |
|
Futymy | 2017-12-18 08:49:40 | 2 | Tiny change: 't case: \n7 4 3\n2' -> 't case: \n\n7 4 3\n2' | |
| en3 |
|
Futymy | 2017-12-18 08:48:34 | 4 | Reverted to en1 | |
| en2 |
|
Futymy | 2017-12-18 08:47:50 | 4 | ||
| en1 |
|
Futymy | 2017-12-18 08:46:49 | 382 | Initial revision (published) |
