SUM 列中的连续值

Question

是否可以在一列中 SUM 组连续值，而无需像我在这张图片中那样手动将它们逐一分组？

sample sheet

Answer 1

=ARRAYFORMULA(SUBSTITUTE(TRANSPOSE(SPLIT(CONCATENATE({"♥"&MMULT(
 SPLIT(TRANSPOSE(SPLIT(TEXTJOIN(" ", 1, IF(INDIRECT("A2:A"&MAX(IF(A2:A<>"", 
 ROW(A2:A), )))="", "♦", A2:A)), "♦")), " ")*1, ROW(INDIRECT("A1:A"&COLUMNS(
 SPLIT(TRANSPOSE(SPLIT(TEXTJOIN(" ", 1, IF(INDIRECT("A2:A"&MAX(IF(A2:A<>"", 
 ROW(A2:A), )))="", "♦", A2:A)), "♦")), " ")*1)))^0),IF(
 SPLIT(TRANSPOSE(SPLIT(TEXTJOIN(" ", 1, IF(INDIRECT("A2:A"&MAX(IF(A2:A<>"", 
 ROW(A2:A), )))="", "♦", A2:A)), "♦")), " ")<>"", "♥♠", )}), "♥")), "♠", ))