NeetCode #920LC-1041MediumMath & Geometry
← Back to All Problems#920 · #1041 · Robot Bounded In Circle(困于环中的机器人)
📌 Problem Statement & Constraints
A robot starts at
(0, 0) facing north on an infinite plane and executes a list of instructions repeatedly forever: G moves forward one unit, L turns left 90 degrees, and R turns right 90 degrees. Return true if there exists a circle in the plane that the robot never leaves. Constraints: 1 <= instructions.length <= 100, and the string contains only G, L and R.🔒
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