TopCoder SRM 666 Div1

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这场号666啊
 

TopCoder SRM 658 Div1

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Hard是个构造题就不想做(其实是不会做)
话说这场是构造场吗...两道构造题...
 

BZOJ NOI十连测 6thTest

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QAQ
 

BZOJ NOI十连测 5thTest

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为什么从第五次才开始写总结呢?..
因为之前忘了OvO
 

TopCoder SRM 626 Div1

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1000一眼看过去觉得太难了就没做...
 

TopCoder SRM 620 Div1

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QAQ