python leetcode 55. Jump Game
看能否達到最後的條件是
- 能達到當前位置i
- nums[i]+i能跳到最後
所以用step記錄當前還能跳幾步,如果當前的步數nums[i]比step大,則更新當前的step
class Solution(object):
def canJump(self, nums):
"""
:type nums: List[int]
:rtype: bool
"""
l1=len(nums)
if l1 <= 1:
return True
step = nums[0]
for i in range(1,l1):
if step + i>=l1:
return True
if step > 0:
step -= 1
step = max(step, nums[i])
else:
return False
return True
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看能否達到最後的條件是 能達到當前位置i nums[i]+i能跳到最後 所以用step記錄當前還能跳幾步,如果當前的步數nums[i]比step大,則更新當前的step class Solution(object): def canJump(self,
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