aman_naughty's blog

By aman_naughty, history, 4 weeks ago, In English,

Problem link

I could not think of any approach but just am getting an intuition of using DSU in reverse or querying offline but I can't think of anything. Someone please help.

I just need an approach not complete code.:)

 
 
 
 
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4 weeks ago, # |
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Auto comment: topic has been updated by aman_naughty (previous revision, new revision, compare).

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4 weeks ago, # |
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Offline approach combined with applying DSU in reverse order would world fine.

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can see this blog, it has the same problem.

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4 weeks ago, # |
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May crop out the URL. The URL in the image leads to reveal email and phone of the person.