[LeetCode] Judge Route Circle 判斷路線繞圈
阿新 • • 發佈:2017-09-13
script initial mov tco view 判斷 lee out clas (Up) and
Initially, there is a Robot at position (0, 0). Given a sequence of its moves, judge if this robot makes a circle, which means it moves back to the original place.
The move sequence is represented by a string. And each move is represent by a character. The valid robot moves are R
(Right), L
(Left), U
D
(down). The output should be true or false representing whether the robot makes a circle.
Example 1:
Input: "UD" Output: true
Example 2:
Input: "LL" Output: false
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[LeetCode] Judge Route Circle 判斷路線繞圈