幾個四方形 依二邊長 (15018)

D2=SUMPRODUCT((B2-ROW($1:$99)+1)*(C2-ROW($1:$99)+1)*(ROW($1:$99)<=MIN(B2:C2)))



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  1. =SUM(TEXT(B2-ROW($1:$99)+1,"0;!0")*TEXT(C2-ROW($1:$99)+1,"0;!0"))

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