AGGRCOW - Aggressive cows
Farmer John has built a new long barn, with N (2 <= N <= 100,000)
stalls. The stalls are located along a straight line at positions
x1 ... xN (0 <= xi <= 1,000,000,000).
His C (2 <= C <= N) cows don't like this barn layout and become
aggressive towards each other once put into a stall. To prevent the
cows from hurting each other, FJ wants to assign the cows to the
stalls, such that the minimum distance between any two of them is
as large as possible. What is the largest minimum distance?
Input
t – the number of test cases, then t test cases follows.
* Line 1: Two space-separated integers: N and C
* Lines 2..N+1: Line i+1 contains an integer stall location, xi
Output
For each test case output one integer: the largest minimum distance.
Example
Input:
1 5 3 1 2 8 4 9
Output:
3
Output details:
FJ can put his 3 cows in the stalls at positions 1, 4 and 8,
resulting in
a minimum distance of 3.
hide comments
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ankurverma1994:
2016-02-03 16:00:32
Weak Test Cases
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codesmiler:
2016-01-25 19:10:39
Excellent Problem,looks hard but it is easy just read the topcoder binary search tutorial and solve this one |
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manas0008:
2016-01-25 11:23:11
It's definitely not as easy as it seems to be.Try to relate it with the example given in Topcoder binary search tutorial.Try the following testcases for confirmation.
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ibrahim5253:
2016-01-24 13:37:51
Really nice one and awesome tutorial on Topcoder |
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Devashish Mathur:
2016-01-21 06:42:05
Great Question.. |
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try2catch:
2016-01-17 10:03:18
F*** -_- [2WA]- forgot to loop for test cases.
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Junaid:
2015-12-23 19:49:23
I would say this is the best problem I have done on SPOJ till now..I took a whole day just to solve this one....but finally AC in one go...my 44th..:P...All THANKS to topcoder.....:)...highly recommended problem.. |
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humanity:
2015-12-22 16:59:47
my 50th :) Nice Question
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ABHISHEK RAJPUT:
2015-12-22 15:23:32
@giriprasad kemburu,yes, he can because minimum distance between stalls is again going to be 3 if you take {1,4,9}. |
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giriprasad kemburu:
2015-12-15 18:07:15
Can he put cows at positions 1,4,9?Please explain anyone.
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| Added by: | Roman Sol |
| Date: | 2005-02-16 |
| Time limit: | 2s |
| Source limit: | 10000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All |
| Resource: | USACO February 2005 Gold Division |
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