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Название |
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I don't know your algorithm but:
AC solution:
set
is red-black tree, soerase
andinsert
both takesO(log|st|)
timeTLE solution:
vector
just linear array, sofind
is just loop. It isO(|graph[nbr]|)
.erase
is just shift all right-side elements +pop_back
, it is tooO(|graph[nbr]|)
Better rewrite to
Difference that in first version there are two searches for
{degree[nbr], nbr}
. In second version it is single search.