exercicio 657 resolvido com python

657-robot_return_to_origin/python/657.py

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+# 657. Robot Return to Origin
+#
+# There is a robot starting at the position (0, 0), the origin, on a 2D plane.
+# Given a sequence of its moves, judge if this robot ends up at (0, 0) after it
+# completes its moves.
+#
+# You are given a string moves that represents the move sequence of the robot
+# where moves[i] represents its ith move.
+# Valid moves are 'R' (right), 'L' (left), 'U' (up), and 'D' (down).
+#
+# Return true if the robot returns to the origin after it finishes all of its
+# moves, or false otherwise.
+#
+# Note: The way that the robot is "facing" is irrelevant. 'R' will always make
+# the robot move to the right once, 'L' will always make it move left, etc.
+# Also, assume that the magnitude of the robot's movement is the same for each
+# move.
+
+
+def judgeCircle(moves: str) -> bool:
+    posicao: list[int] = [0, 0]
+    for move in moves:
+        match move:
+            case "U":
+                posicao[0] += 1
+            case "D":
+                posicao[0] -= 1
+            case "L":
+                posicao[1] -= 1
+            case "R":
+                posicao[1] += 1
+    return posicao == [0, 0]