657. Judge Route Circle
- 描述:
题目很简单,就是判断路线能否组成一圈。向“右”走的步数一定要等于向“左”走的步数;向“下”走的步数一定要等于向“上”走的步数。
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- 思路:
思路就是判断下字符串中“R”的个数是否等于“L”的个数,“D”和“U”同理 - 代码
class Solution(object):
def judgeCircle(self, moves):
"""
:type moves: str
:rtype: bool
"""
return moves.count('R')==moves.count('L') and moves.count('D')==moves.count('U')