Problem related to cummlative sum

What is cummlative sum?

@vikash3303
csum array of
1 2 3
is
1 3 6
so basically sum of prev elements + current

where are the assignments to solve

@vikash3303 in challenges section there are problems

In 14th and 15th line code why we have given the value of i and j to be -1 we could have given 0 also

@vikash3303 share the code using cb ide

pls tell how could i share the cb ide ,is there any way to share the screenshot

@vikash3303


copy paste here save and share the link