[Gym 102135][B - Freebie]2017-2018 8th BSUIR Open Programming Contest
description就是生日悖论的改造周六周日生日的推迟到周一去举行,现在有n人(n#definemax(a,b)((a>b)?a:b)#definemin(a,b)((a=b;i--)#definetr(t,x)for(LLt=first[x];t;t=nex[t])#defineLLlonglong#definedbdoubleusingnamespacestd;constLLN=300;i