Class Solution

java.lang.Object
g1401_1500.s1496_path_crossing.Solution

public class Solution extends Object
1496 - Path Crossing\. Easy Given a string `path`, where `path[i] = 'N'`, `'S'`, `'E'` or `'W'`, each representing moving one unit north, south, east, or west, respectively. You start at the origin `(0, 0)` on a 2D plane and walk on the path specified by `path`. Return `true` _if the path crosses itself at any point, that is, if at any time you are on a location you have previously visited_. Return `false` otherwise. **Example 1:** ![](https://assets.leetcode.com/uploads/2020/06/10/screen-shot-2020-06-10-at-123929-pm.png) **Input:** path = "NES" **Output:** false **Explanation:** Notice that the path doesn't cross any point more than once. **Example 2:** ![](https://assets.leetcode.com/uploads/2020/06/10/screen-shot-2020-06-10-at-123843-pm.png) **Input:** path = "NESWW" **Output:** true **Explanation:** Notice that the path visits the origin twice. **Constraints:** * 1 <= path.length <= 104 * `path[i]` is either `'N'`, `'S'`, `'E'`, or `'W'`.
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • isPathCrossing

      public boolean isPathCrossing(String path)