20250214 finished.

src/problem/mod.rs

@@ -484,3 +484,5 @@ mod p1728_cat_and_mouse_ii;
 mod p1760_minimum_limit_of_balls_in_a_bag;
 
 mod p1742_maximum_number_of_balls_in_a_box;
+
+mod p1552_magnetic_force_between_two_balls;