| # | User | Rating |
|---|---|---|
| 1 | ecnerwala | 3648 |
| 2 | Benq | 3580 |
| 3 | orzdevinwang | 3570 |
| 4 | cnnfls_csy | 3569 |
| 5 | Geothermal | 3568 |
| 6 | tourist | 3565 |
| 7 | maroonrk | 3530 |
| 8 | Radewoosh | 3520 |
| 9 | Um_nik | 3481 |
| 10 | jiangly | 3467 |
| # | User | Contrib. |
|---|---|---|
| 1 | maomao90 | 174 |
| 2 | adamant | 164 |
| 2 | awoo | 164 |
| 4 | TheScrasse | 160 |
| 5 | nor | 159 |
| 6 | maroonrk | 156 |
| 7 | SecondThread | 150 |
| 8 | -is-this-fft- | 149 |
| 9 | pajenegod | 145 |
| 10 | BledDest | 144 |
Math: Permutation question need help
I am trying to find the number of integral solution to the given equation
x1+x2+x3+x4=n given that x1>x2>x3>x4
But could not figure out any mathematical formula to it. If someone knows how to solve it please help
UPD: xi>=0 (all number are greater than or equal to zero)
Thanks
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en2 |
|
singhpriyank | 2020-05-08 14:47:47 | 69 | Tiny change: 'ase help\n**UPD:**' -> 'ase help\n\n\n**UPD:**' | |
| en1 |
|
singhpriyank | 2020-05-08 13:01:10 | 277 | Initial revision (published) |
