leetcode 657 Judge Route Circle
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class Solution { public boolean judgeCircle(String moves) { int x=0,y=0; for(int i=0;i<moves.length();i++){ if(moves.charAt(i)=='U') x++; else if(moves.charAt(i)=='D') x--; else if(moves.charAt(i)=='L') y++; else if(moves.charAt(i)=='R') y--; } return x==0&y==0; }}
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