20241104 finished.

src/problem/mod.rs

@@ -294,3 +294,5 @@ mod p3259_maximum_energy_boost_from_two_drinks;
 mod p3226_number_of_bit_changes_to_make_two_integers_equal;
 
 mod p638_shopping_offers;
+
+mod p633_sum_of_square_numbers;