Hello!
My submission is getting WA on test 21, since there's no editorial I can't see the desired solution and I can't figure out where my mistake is.
Here is the link : http://codeforces.com/contest/279/submission/20043264
Thanks for help!
№ | Пользователь | Рейтинг |
---|---|---|
1 | ecnerwala | 3649 |
2 | Benq | 3581 |
3 | orzdevinwang | 3570 |
4 | Geothermal | 3569 |
4 | cnnfls_csy | 3569 |
6 | tourist | 3565 |
7 | maroonrk | 3531 |
8 | Radewoosh | 3521 |
9 | Um_nik | 3482 |
10 | jiangly | 3468 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | maomao90 | 174 |
2 | awoo | 164 |
3 | adamant | 163 |
4 | TheScrasse | 159 |
5 | nor | 158 |
6 | maroonrk | 156 |
7 | -is-this-fft- | 152 |
8 | SecondThread | 147 |
9 | orz | 146 |
10 | pajenegod | 145 |
Hello!
My submission is getting WA on test 21, since there's no editorial I can't see the desired solution and I can't figure out where my mistake is.
Here is the link : http://codeforces.com/contest/279/submission/20043264
Thanks for help!
Название |
---|
The approach I used is to define R[i] = how much to the right can I go from i so that the elements don't decrease and L[i] = how much to the left can I go from i so that the elements don't decrease. We can compute this in linear time. Then to answer a query, I simply check if R[l] > = L[r].