780. Reaching Points LeetCode Solution | Easy Approach

Minimum Cost to Merge Stones
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Reaching Points Given four integers sxsytx, and ty, return true if it is possible to convert the point (sx, sy) to the point (tx, ty) through some operations, or false otherwise.

The allowed operation on some point (x, y) is to convert it to either (x, x + y) or (x + y, y).

Example 1:

Input: sx = 1, sy = 1, tx = 3, ty = 5
Output: true
Explanation:
One series of moves that transforms the starting point to the target is:
(1, 1) -> (1, 2)
(1, 2) -> (3, 2)
(3, 2) -> (3, 5)

Example 2:

Input: sx = 1, sy = 1, tx = 2, ty = 2
Output: false

Example 3:

Input: sx = 1, sy = 1, tx = 1, ty = 1
Output: true

Constraints:

  • 1 <= sx, sy, tx, ty <= 109

Reaching Points Solutions

Time: O(n)
Space: O(n)

C++

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