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I don't know if this is a mistake or not but if you use C++ you have to write
"fout<< res;" in the main function in order to have the result apply to the testcases. Normally we wouldn't have to change anything in the main function it feels like it's a mistake.
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Kruskal (MST): Really Special Subtree
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I don't know if this is a mistake or not but if you use C++ you have to write "fout<< res;" in the main function in order to have the result apply to the testcases. Normally we wouldn't have to change anything in the main function it feels like it's a mistake.