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Reduce: append new or update the last solution in Creative category for Merge Intervals by Lemmi
import functools
def merge_intervals(intervals):
def merge(res, x):
return res + [x] if not res or x[0] > res[-1][1] + 1 else res[:-1] + [(res[-1][0], max(x[1], res[-1][1]))]
return functools.reduce(merge, intervals, [])
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert merge_intervals([(1, 4), (2, 6), (8, 10), (12, 19)]) == [(1, 6), (8, 10), (12, 19)], "First"
assert merge_intervals([(1, 12), (2, 3), (4, 7)]) == [(1, 12)], "Second"
assert merge_intervals([(1, 5), (6, 10), (10, 15), (17, 20)]) == [(1, 15), (17, 20)], "Third"
print('Done! Go ahead and Check IT')
Aug. 1, 2017
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