id 1414379912 Time: 3 ms MemUsage: 2.1 MB

leetcode/robot-return-to-origin/solution_1414379912.rs

@@ -0,0 +1,13 @@
+impl Solution {
+    pub fn judge_circle(moves: String) -> bool {
+        moves.chars().fold((0, 0), |(x, y), c| {
+            match c{
+                'U' => (x, y + 1),
+                'D' => (x, y - 1),
+                'L' => (x - 1, y),
+                'R' => (x + 1, y),
+                _ => unreachable!()
+            }
+        }) == (0, 0)
+    }
+}