I have n number of friends , some of the friends pay me and I owe some amout to my friends.
I have to reach end also make to sure to pay if I have the amount available . Find minimum number of moves to reach end . Need to only move sequential and reverse order .

Example -
-100,-100,100,100 - number of moves answer - 10
100 100 -300 100 number of moves answer - 6

100 100 -400 100 100 1 1 1 1 -100 -100 200 number of moves 20 .