As per, StackExchange policies, his/her votes will be invalidated after account deletion.So
The vote cast by that user is removed from your account.
And that delete votes cannot be rolled back again.
Any questions asked by this user which have a score of 1 and 1-year-old, no answers, low views, etc will delete from StackExchange platform (Check below more details ). Rest of all is will exits.
List of condition on which that user's question will remove from StackExchange.
If the question is more than 30 days old, and
has −1 or lower score
has no answers
is not locked
... or ...
It was closed and migrated to a different site
...or...
it was migrated from a different site, and then rejected
it will be automatically deleted.
If the question is more than 365 days old, and ...
has a score of 0 or less, or a score of 1 and a deleted owner
has no answers
is not locked
has view count <= the age of the question in days times 1.5
has 1 or 0 comments
isn't on a meta site
It will be automatically deleted.
If the question was closed more than 9 days ago, and
not closed as a duplicate
has a score of 0 or less
is not locked
has no answers with a score > 0
has no accepted answer
has no pending reopen votes
has not been edited in the past 9 days
It will be automatically deleted.