We have an array with size N from integers.

what is the best complexity of finding max sum of subarrays with size 1,2,3..,N ?

for example :

a = 1 4 4 2 5

s1 = 5

s2 = 8

s3 = 11

s4 = 15

s5 = 16

• How about max/min single number or such interesting things ?

thanks.