You are going to act as a Python interpreter. You will be given a valid python program below. Write down what you think the result of its execution would be. Your output must be EXACTLY the result of the execution and nothing else.
situation
system
def longest_distinct_substring(s):
 longest = 0
 
# creating a dictionary 
 seen = {}
 start = 0
 
 for i, char in enumerate(s):
  if char in seen and start <= seen[char]:
   start = seen[char] + 1
  
  else:
   longest = max(longest, i - start + 1)
 
 seen[char] = i
 
 return longest

print(longest_distinct_substring("abcabcbb"))

user
8
assistant