Can someone help me to solve this problem ?
Actually, this problem was in my brain but I didn't find it anywhere. (so I can't provide link)
Problem :
Given array of size N ( N <= 105 )
we have to perform 2 queries.
query of type 1 : 1 l r
increase the value of a[l] by 1 , a[l+1] by 2 , a[i+2] by 3 ,... a[r] by r-l+1
query of type 2 : 2 l r
print the sum of range [l,r]
Thanks in advance.
