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LeetCode-Solutions/Python/car-fleet.py at master · pythonpeixun/LeetCode-Solutions · GitHub
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LeetCode-Solutions
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Python
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car-fleet.py
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19 lines (17 loc) · 481 Bytes
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LeetCode-Solutions
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Python
/
car-fleet.py
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# Time: O(nlogn)
# Space: O(n)
class
Solution
(
object
):
def
carFleet
(
self
,
target
,
position
,
speed
):
"""
:type target: int
:type position: List[int]
:type speed: List[int]
:rtype: int
"""
times
=
[
float
(
target
-
p
)
/
s
for
p
,
s
in
sorted
(
zip
(
position
,
speed
))]
result
,
curr
=
0
,
0
for
t
in
reversed
(
times
):
if
t
>
curr
:
result
+=
1
curr
=
t
return
result
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