LOJ.2865.[IOI2018]ÀÇÈË(KruskalÖع¹Ê÷ Ö÷ϯÊ÷)
ÆäʵÊÇNOI2018£¨Îí
------------------------------------------------------------------------------------------------------------------------
ºÜ¾ÃÒÔÇ°µÄÆæ¹Öµ«ÏÖÔÚÒÀ¾É³ÉÁ¢µÄÇ©Ãû
attack is our red sun $$\color{red}{\boxed{\color{red}{attack\ is\ our\ red\ sun}}}$$ ------------------------------------------------------------------------------------------------------------------------
ºÜ¾ÃÒÔÇ°µÄÆæ¹Öµ«ÏÖÔÚÒÀ¾É³ÉÁ¢µÄÇ©Ãû
attack is our red sun $$\color{red}{\boxed{\color{red}{attack\ is\ our\ red\ sun}}}$$ ------------------------------------------------------------------------------------------------------------------------
