I would like to know why the color of nickname not presentsthe rating in codeforces?
# | User | Rating |
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1 | jiangly | 3898 |
2 | tourist | 3840 |
3 | orzdevinwang | 3706 |
4 | ksun48 | 3691 |
5 | jqdai0815 | 3682 |
6 | ecnerwala | 3525 |
7 | gamegame | 3477 |
8 | Benq | 3468 |
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10 | maroonrk | 3379 |
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1 | cry | 168 |
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3 | Dominater069 | 161 |
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4 | atcoder_official | 159 |
6 | djm03178 | 157 |
7 | adamant | 153 |
8 | luogu_official | 151 |
9 | awoo | 149 |
10 | TheScrasse | 146 |
I would like to know why the color of nickname not presentsthe rating in codeforces?
Can someone help me solve this problem? (_Introduction to Algorithms, Second Edition_: problem 24-6)
A sequence is bitonic if it monotonically increases and then monotonically decreases, or if by a circular shift it monotonically increases and then monotonically decreases. For example the sequences ⟨1,4,6,8,3,−2⟩, ⟨9,2,−4,−10,−5⟩, and ⟨1,2,3,4⟩ are bitonic, but ⟨1,3,12,4,2,10⟩ is not bitonic. (See Problem 15-3 for the bitonic euclidean traveling-salesman problem.)
Suppose that we are given a directed graph G=(V,E) with weight function w:E→R, where all edge weights are unique, and we wish to find single-source shortest paths from a source vertex s. We are given one additional piece of information: for each vertex v∈V, the weights of the edges along any shortest path from s to v form a bitonic sequence.
Give the most efficient algorithm you can to solve this problem, and analyze its running time.
Obviously Bellman Ford's algorithm solves in O (V.E). Is there a better algorithm?
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