Why is the answer to this problem always ( N + K — 3) / (K — 1).
Can anyone please help me. editorial is not clear.
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How to derive this formula for this atcoder problem.
Revision en1, by spirited_away_, 2019-08-05 05:02:10
History
Revisions
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en1 |
|
spirited_away_ | 2019-08-05 05:02:10 | 236 | Initial revision (published) |
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