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+4
I think graph was introduced in problem B just to scare the participants. |
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0
Your physique tells everything about you. Respect ++ Although I have seen one your solution in Edu section .. maybe in Binary Search course if I am not wrong. |
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+17
Exactly, I think that most of the people whose first solution got WA have submitted that for odd N, answer is -1 and after getting it wrong started to think about odd N. |
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0
what was the distribution technique for question 3rd... I thought of pairing in 2 because their difference will be 1 which is a perfect square but for odd N, i paired index 1 10 and 26 as their difference is also perfect sqaure. Anyone ? whose solution got AC ? Thanks !! |
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0
What's the order of swapping in 3rd question or simply what was the logic behind this question, I tried a lot but didn't got the answer. |
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0
I was able to figure out that number of ON bulbs after n operations is related to sqrt(n) but was going in opposite track. Here only perfect squares are off and other are ON. |
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+1
Now after seeing the solution of B problem.... I just want to cry ): |
