https://codeforces.com/problemset/problem/52/B
Can somebody explain me this question? I am not getting its problem statement.
https://codeforces.com/problemset/problem/52/B
Can somebody explain me this question? I am not getting its problem statement.
# | User | Rating |
---|---|---|
1 | tourist | 3690 |
2 | jiangly | 3647 |
3 | Benq | 3581 |
4 | orzdevinwang | 3570 |
5 | Geothermal | 3569 |
5 | cnnfls_csy | 3569 |
7 | Radewoosh | 3509 |
8 | ecnerwala | 3486 |
9 | jqdai0815 | 3474 |
10 | gyh20 | 3447 |
# | User | Contrib. |
---|---|---|
1 | maomao90 | 173 |
2 | awoo | 164 |
3 | adamant | 163 |
4 | TheScrasse | 159 |
5 | nor | 157 |
6 | maroonrk | 156 |
7 | -is-this-fft- | 152 |
8 | Petr | 146 |
8 | orz | 146 |
10 | pajenegod | 145 |
Name |
---|
Well, I am glad to share my insights with you. The problem asks us to count the number of "Right Triangles"(you must know what the "RT" is), the Picture is described by '.' '*', we need to count the triangles consisted of '*'. The first Example is , the ans equals the number of '*'(note that one '*' can make a triangle itself); And the example below has the two triangles consisted of 3 '*' extra. (ignore my pool English)
ignore your pool English