Add 780_Reaching_Points.java

Author: seanprashad

Math/780_Reaching_Points.java

@@ -0,0 +1,19 @@
+class Solution {
+    public boolean reachingPoints(int sx, int sy, int tx, int ty) {
+        while (sx < tx && sy < ty) {
+            if (tx > ty) {
+                tx %= ty;
+            } else {
+                ty %= tx;
+            }
+        }
+
+        if (sx == tx && sy <= ty && (ty - sy) % sx == 0) {
+            return true;
+        }
+        if (sy == ty && sx <= tx && (tx - sx) % sy == 0) {
+            return true;
+        }
+        return false;
+    }
+}