vatayush's blog

By vatayush, 10 years ago, In English

hi! i am trying to solve this question.here's my code.it is getting stuck somewhere.i can't find the error.please help!!

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10 years ago, # |
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s.insert(0);
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10 years ago, # |
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Thanx fo the quetion

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10 years ago, # |
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Why you used the set structure, is more ease checking that vis[n] is true, otherway the solution is -1.