區域間 頭尾顯總和 (14165)

C2=IF(N(B1)=0,SUM(OFFSET(B2,,,-LOOKUP(1,-MATCH(1=1,B2:B16="",{1,0})))),IF(B3=0,LOOKUP(1,0/(C$1:C1<>""),C$1:C1),""))



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  1. =IF(N(B1)*N(B3),"",SUM(INDEX(B:B,MATCH(1,0/(B$1:B2=""))):INDEX(B:B,ROW(A1)+MATCH(1=1,B2:B$18="",))))

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