0 used to emphasize that you disagree or that something is not true: --
"Where did you get the money? Did you steal it?" "Of course not. I borrowed it from Carol."
1 definitely no or definitely not: --
"The pie is delicious! Do you mind if I have a second helping? " "Of course not, I’m glad you like it."
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
of course not