< Previous 　　　　　　　　　　　　　　　　 Next >

356. Line Reflection (Medium)

Given n points on a 2D plane, find if there is such a line parallel to y-axis that reflect the given points.

Example 1:

Input: [[1,1],[-1,1]]
Output: true

Example 2:

Input: [[1,1],[-1,-1]]
Output: false

Hint 1

Find the smallest and largest x-value for all points.

Hint 2

If there is a line then it should be at y = (minX + maxX) / 2.

Hint 3

For each point, make sure that it has a reflected point in the opposite side.

Provide feedback