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LeetCode: 134. Gas Station 본문
class Solution:
def canCompleteCircuit(self, gas: List[int], cost: List[int]) -> int:
culsum = 0
for i in range(len(gas)):
gas[i] -= cost[i]
culsum += gas[i]
if culsum < 0:
return -1
start_idx, culsum = 0, 0
for i in range(len(gas)):
culsum += gas[i]
if culsum < 0:
culsum = 0
start_idx = i + 1
return start_idx
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