I'm studying python and got an issue with a lab. Need to calculate the longest sequence of an s char in a string, can only use basic tools like for loops.
The code that I've come up with works, but it feels like I'm using an inappropriate logics adding a sequence_extended variable with an extra space. However without this extension provided the sequence is e.g. sssdssss the calculation only works for the first sequence.
Might there be a way to avoid that extension? I've tried looking for an idea, but the solution is usually to use the functions we're not allowed to use yet, such as lists etc.
sequence = input('enter a line: ')
sequence_extended = sequence + ' '
counter = 0
final_counter = 0
for symbol in sequence_extended:
if symbol == 's':
counter += 1
else:
if counter > final_counter:
final_counter = counter
counter = 0
print("The longest sequence of 's':", final_counter)
sequence = "sssdssss"
max_len = 0
for i in range(len(sequence)):
if sequence[i] == "s":
j = i
length = 0
while j < len(sequence) and sequence[j] == "s":
length += 1
j += 1
if length > max_len:
max_len = length
print("The longest sequence of 's':", max_len)