CLOPPAIR - Closest Point Pair
You are given N points on a plane and your task is to find a pair of points with the smallest Euclidean distance between them.
All points will be unique and there is only one pair with the smallest distance.
Input
First line of input will contain N (2<=N<=50000) and then N lines follow each line contains two integers giving the X and Y coordinate of the point. Absolute value of X,Y will be at most 10^6.
Output
Output 3 numbers a b c, where a, b (a<b) are the indexes (0 based) of the point pair in the input and c is the distance between them. Round c to 6 decimal digits.
See samples for more clarification.
Input:
5
0 0
0 1
100 45
2 3
9 9
Output:
0 1 1.000000
Input:
5
0 0
-4 1
-7 -2
4 5
1 1
Output:
0 4 1.414214
hide comments
Kamil Debowski:
2015-03-16 16:54:01
guys, be careful about "Round c to 6 decimal digits." |
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S Akira Sai Karthik:
2015-02-06 06:41:21
Getting wrong answer after test case 12 any idea ??? |
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Chuyên Nhật CNN:
2014-08-23 18:00:52
I think the test cases are week :| |
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Erdem Kirez:
2014-07-31 13:48:14
Be careful about output.
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bat2009fifa:
2014-02-06 13:08:40
you can never trust double or even long double more than long long int.
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innovolt:
2013-11-09 18:56:51
any spcl test case...getting WA after 12th test case |
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Ashutosh Singla:
2013-08-25 18:34:14
take care of limits Last edit: 2013-08-26 21:22:42 |
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i_hate_myself:
2013-02-22 19:15:11
getting wrng ans on 12th test case...give me some more test case.. ???
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Monkey D. Luffy :
2013-02-15 22:09:13
pheww it got up to 12th test case then wa...
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Utkarsh Shahdeo:
2013-02-06 13:02:27
Last edit: 2013-05-29 05:43:06 |
Added by: | SALVO |
Date: | 2011-04-14 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | Standard Problem |