The test cases for the problem SEAGRP are weak. Many wrong solution are being accepted which must have failed if test cases were good.
One of my friend got accepted but his code giving wrong answer on this test case and i'm sure many other accepted code would fail on this test case.
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6 7
1 2
2 3
3 4
2 6
2 5
6 3
5 3
I think you should re-judge all solution by adding some more test cases
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Weak test cases for SEAGRP (Jan14 long contest)
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