Day 16 10 min
Consistency across several stores
1 / 11 · ≈ 9 min left
Warm-up
From yesterday. Answer from memory: a wrong guess still helps you remember.
A call to charge a card times out. What do you know about the charge?
Consistency across several stores
1 / 11 · ≈ 9 min left
From yesterday. Answer from memory: a wrong guess still helps you remember.
A call to charge a card times out. What do you know about the charge?