Python

Question 1

inline if

Answer 1

print a if b else 0

Question 2

how to write inline dictionary init or update. element

Answer 2

hash_map[char] = hash_map[char] + 1 if char in hash_map else 1

Question 3

how to get the values of dictionary?

Answer 3

mp.values(), and it return a list of all the values.

Question 4

!= vs not

Answer 4

not is a logic operation that convert the bool value
!= check if left not equal to right