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answer differ on codeforce and visual studio
By Tensor, 10 years ago, In English

I'm solving this problem but there is a little problem for first test case my solution on visual studio returns (2 6) the right answer. after submitting i get wrong answer on test case 1!! getting (1 6) either than (2 6). here is my code please can any one tell me what's the problem?!! thanks in advance!

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10 years ago, # |
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Our old friend, the undefined behavior, strikes again! See, for instance, this:

http://stackoverflow.com/questions/11132236/why-does-increment-operation-like-ai-i-result-in-undefined-behavior

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    10 years ago, # ^ |
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    thank you, i know what's wrong now :-)

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