Doubt in code loop cannot have i=0

#1

here if we take i=0 in loop the index of cs[i-1] will become -1.
how is that possible?

#2

Hello @dhasmanasaksham572 Yes we have to add one constraint which Sir missed

if(i>=1)
current_sum = cum_sum[j] + cum_sum[i-1];
else
current_sum= cum_sum[j] ;

#3

is this code correct?
https://ide.codingblocks.com/s/424614

#4

@dhasmanasaksham572 check this:


you have to handle the case like this.
Happy Learning!!

#5

what is the need of csum[n]={0}

#6

@dhasmanasaksham572 in this we are just making the initital sum at every point as 0.
it is just a good practice.

#7

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