(1+2+3+...+1997)/1997
=1998/2
=999
y=|x-1|+|x-2|+...+|x-1997|
min y = y(999)
=998+997+....+0+1+2+...+998
= (1+998)998
=997002
(1+2+3+...+1997)/1997
=1998/2
=999
y=|x-1|+|
|+...+|x-1997|
min y = y(999)
=998+997+....+0+1+2+...+998
= (1+998)998
=997002