LeetCode 657. Judge Route Circle
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题意
机器人开始在(0,0)点,有一段指令,包括上下左右,判断它通过一段指令后是否回到了原点。
解题思路
模拟即可
参考代码
//javaclass Solution { public boolean judgeCircle(String moves) { int x=0,y=0; for (int i=0;i<moves.length();i++){ if (moves.charAt(i)=='R') x++; if (moves.charAt(i)=='L') x--; if (moves.charAt(i)=='U') y--; if (moves.charAt(i)=='D') y++; } if (x==0&&y==0) return true; return false; }}
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