# | User | Rating |
---|---|---|
1 | jiangly | 3976 |
2 | tourist | 3815 |
3 | jqdai0815 | 3682 |
4 | ksun48 | 3614 |
5 | orzdevinwang | 3526 |
6 | ecnerwala | 3514 |
7 | Benq | 3482 |
8 | hos.lyric | 3382 |
9 | gamegame | 3374 |
10 | heuristica | 3357 |
# | User | Contrib. |
---|---|---|
1 | cry | 168 |
2 | -is-this-fft- | 165 |
3 | atcoder_official | 161 |
3 | Um_nik | 161 |
5 | djm03178 | 157 |
6 | Dominater069 | 156 |
7 | adamant | 154 |
8 | luogu_official | 152 |
9 | awoo | 151 |
10 | TheScrasse | 147 |
Practice #1 Editorial
I would like to thank all the participants for their participation hope you enjoyed the problems , I'm Really Shocked to reach about 100 participants joined the contest Problems A. Cubes
The Sum $$$\sum_{x=1}^{n}x^3$$$ has a closed form which is $$$(\frac{n(n+1)}{2})^2$$$
x=int(input())
print(x*(x+1)*x*(x+1)//4)
Rev. | Lang. | By | When | Δ | Comment | |
---|---|---|---|---|---|---|
en7 | I_HATE_DBCHEATERS | 2023-08-25 19:41:29 | 43 | |||
en6 | I_HATE_DBCHEATERS | 2023-08-25 19:40:36 | 8 | Tiny change: ''m Really Shocked to reach' -> ''m Really proud to reach' | ||
en5 | I_HATE_DBCHEATERS | 2023-08-25 18:51:56 | 3 | (published) | ||
en4 | I_HATE_DBCHEATERS | 2023-08-25 18:51:31 | 614 | |||
en3 | I_HATE_DBCHEATERS | 2023-08-25 18:46:45 | 589 | |||
en2 | I_HATE_DBCHEATERS | 2023-08-25 18:43:13 | 1082 | Tiny change: 'spoiler>\n\n\n<spoiler' -> 'spoiler>\n<spoiler' | ||
en1 | I_HATE_DBCHEATERS | 2023-08-25 18:30:12 | 568 | Initial revision (saved to drafts) |
Name |
---|