Răspuns
(1,20),(1,21),(1,22),(1,23),...,(1,40);(2,10),(2,11),(2,12),...,(2,20);(3,7),(3,8),(3,9),(3,10),(3,11),(3,12),(3,13);(4,5),(4,6),(4,7),(4,8),(4,9),(4,10);(5,4),(5,5),(5,6)(5,7),(5,8);(6,4),(6,5),(6,6);(7,3),(7,4),(7,5);(8,3);(8,4),(8,5);(9,3),(9,4);(10,2),(10,3),(10,4);(11,2),(11,3);(12,2),(12,3);(13,2),(13,3);(14,2);(15,2);(16,2);(17,2);(18,2);(19,2);(20,1),(20,2);(21,1);(22,1);(23,1),...,(40,1).
Explicație pas cu pas:
