« Notes
Advent of code 2022 day4
Créée le 11 Sep 2023
- I always try to solve the sample before the real input

- The splitting part of the input was easy.
- I tried to use a sophisticated
QUERY (a SQL DSL over spreadsheet, quite powerful!) but couldn’t crack it without subqueries that aren’t supported.
- So I fired my ultimate weapon
IFS : =IFS(B2="",0,and(B2>=B3,C2<=C3),1,and(B3>=B2,C3<=C2),1,true,0) and copied it on each row (row reference are adapted automatically!!). Just
- Then I downloaded my input, but, oh NO, 😑 the sample is not like the input. I must have misread something 🤷♂️. Next time I should compare the input with the sample!
- So do it again !
- I applied same technique, and with all data presented in column instead of group of rows, it was even easier … ⭐️
- The second part was just an adaptation of the
IFS ⭐️
- Find the spreadsheet here