osvaldosantos823's blog

By osvaldosantos823, history, 6 weeks ago, In English

Hi, I'm trying to solve this problem: Islands

I know this problem it can be solve with union find, but i don't know how use it. Because I'm doing a walk-through per year and for each year I do a walk-through per node, for that the complexity it would be quadratic.

I have thought to do it linear(O(nlogn)), flood all the island fully and then start decreasing the water level. But I don't know how to do it the walk-through for the array.

Thanks,

 
 
 
 
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