20190821 Group B summary

Score:100+10+0+30=140(Rank:36)
Please forgive me for T3 did not understand
why the topic did not even say how to count the distance! ! !
I (ju ruo) Forget a Manhattan distance! ! !
But did not count a negative number! ! !
Then positive solution to this fight hung up ......
ooo, ooo ......
also I 100, I 100 also ......
240 on Rank :7the ......
ooo, ooo ......
it was so overturned ......

T1:

Race:

Recursive + minimum spanning tree, cut the sample directly

Forget the hand of the several data also

After the game:

You can also use actually like pressure DP? ? ?

Well, I was too dishes ......

Topic positive solutions:

Generating a recursive tree minimum pressure DP + 

 

T2:

Race:

DP 1 hour pushed the formula

The sample is then blown up

Then hit the table cheat points

After the game:

Ooo, ooo ......

There is a wrong place

Then change with the change on the AC

Then was told of a gangster violence on constant 900ms + card

 

I was too dishes ......

Topic positive solutions:

DP

 

T3:

Race:

The distance from Manhattan counted as a negative number and then did not consider direct blow

The sample did too ......

After the game:

The change from the formula

Then considered a negative number, then pitted again the shortest path (Floyd)

Topic positive solutions:

Shortest

 

T4:

Race:

It looks like a minimum cut

But traffic is what ah!

Then I hit a maximum flow minimum cut requirements found explode ......

So happy DFS + Floyd had lost one sample (good rare ah!)

After the game:

30 points, expected.

But look at this solution to a problem can be cut with minimal ah! ! !

Missed positive solution ......

But DFS + Floyd + Dijkstra can change the greedy over

moment

what……

Topic positive solutions:

Greedy network flow Shortest

 

to sum up:

Or to a little self-confidence, try to play a positive solution

I can not understand because the meaning of the questions wrong and positive solutions to fight hung up ......

Come on!

 

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Origin www.cnblogs.com/zhouyifei/p/11389456.html