| # | User | Rating |
|---|---|---|
| 1 | tourist | 4009 |
| 2 | jiangly | 3823 |
| 3 | Benq | 3738 |
| 4 | Radewoosh | 3633 |
| 5 | jqdai0815 | 3620 |
| 6 | orzdevinwang | 3529 |
| 7 | ecnerwala | 3446 |
| 8 | Um_nik | 3396 |
| 9 | ksun48 | 3390 |
| 10 | gamegame | 3386 |
| # | User | Contrib. |
|---|---|---|
| 1 | cry | 167 |
| 2 | Um_nik | 163 |
| 3 | maomao90 | 162 |
| 3 | atcoder_official | 162 |
| 5 | adamant | 159 |
| 6 | -is-this-fft- | 158 |
| 7 | awoo | 157 |
| 8 | TheScrasse | 154 |
| 9 | Dominater069 | 153 |
| 9 | nor | 153 |
Not able to understand the formula given in editorial
In english tutorial of https://codeforces.net/contest/460/problem/A, it is given that answer can be calculated using formula
, but I am not able to understand how we reached at this formula. Please help me in this.
Here is my accepted submission , but my solution will exceed time limit if value of n is very large. Fortunately in this question input size limit is very small, hence my solution works.
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en5 |
|
shinghalrishabh | 2020-04-11 15:17:21 | 0 | (published) | |
| en4 |
|
shinghalrishabh | 2020-04-11 15:16:52 | 70 | ||
| en3 |
|
shinghalrishabh | 2020-04-11 15:13:20 | 1 | Tiny change: 'very small hence my ' -> 'very small, hence my ' (saved to drafts) | |
| en2 |
|
shinghalrishabh | 2020-04-11 15:07:28 | 61 | ||
| en1 |
|
shinghalrishabh | 2020-04-11 15:06:22 | 597 | Initial revision (published) |
