# Solutions for longest consecutive elements

• @Ethan, submitted in Python 2, achived 100% score
``````import json
class NumRange:
def __init__(self, start, end):
self.start = start
self.end = end

def __hash__(self):
return hash(self.start, self.end)

def __eq__(self, other):
return self.start == other.start and self.end == other.end

def __repr__(self):
return "[{}, {}]".format(self.start, self.end)

if num + 1 in starts and num - 1 in ends:
num_range_1 = ends[num - 1]
num_range_2 = starts[num + 1]
num_range = NumRange(num_range_1.start, num_range_2.end)
starts[num_range.start] = num_range
ends[num_range.end] = num_range
del starts[num_range_2.start]
del ends[num_range_1.end]
return
elif num + 1 in starts:
num_range = starts[num + 1]
num_range.start = num
starts[num] = num_range
del starts[num + 1]
return
elif num - 1 in ends:
num_range = ends[num - 1]
num_range.end = num
ends[num] = num_range
del ends[num - 1]
return

num_range = NumRange(num, num)
starts[num] = num_range
ends[num] = num_range

def solve(arr):
starts = dict()
ends = dict()

for num in arr:

max_len = 0
for start in starts:
num_range = starts[start]
length = num_range.end - num_range.start + 1
max_len = length if length > max_len else max_len

return max_len``````
• @Ethan, submitted in Python 3, achived 100% score
``````import json
class NumRange:
def __init__(self, start, end):
self.start = start
self.end = end

def __hash__(self):
return hash(self.start, self.end)

def __eq__(self, other):
return self.start == other.start and self.end == other.end

def __repr__(self):
return "[{}, {}]".format(self.start, self.end)

if num + 1 in starts and num - 1 in ends:
num_range_1 = ends[num - 1]
num_range_2 = starts[num + 1]
num_range = NumRange(num_range_1.start, num_range_2.end)
starts[num_range.start] = num_range
ends[num_range.end] = num_range
del starts[num_range_2.start]
del ends[num_range_1.end]
return
elif num + 1 in starts:
num_range = starts[num + 1]
num_range.start = num
starts[num] = num_range
del starts[num + 1]
return
elif num - 1 in ends:
num_range = ends[num - 1]
num_range.end = num
ends[num] = num_range
del ends[num - 1]
return

num_range = NumRange(num, num)
starts[num] = num_range
ends[num] = num_range

def solve(arr):
starts = dict()
ends = dict()

for num in arr: