机器人能否返回原点-模拟657-python

没看答案，只要向右移动和向左移动，向前移动和向后移动的次数一样，即可返回原点。

from collections import Counter

class Solution:
    def judgeCircle(self, moves: str) -> bool:
        move = Counter(moves)
        return move['U'] == move['D'] and move['L'] == move['R']

class Solution:
    def judgeCircle(self, moves: str) -> bool:
        up = down = left = right = 0
        
        for move in moves:
            if move == 'U':
                up += 1
            elif move == 'D':
                down += 1
            elif move == 'L':
                left += 1
            else:
                right += 1

        return up == down and left == right