The program is how to calculate largest rectangle area

#1

it runs fine in all test cases but
when the size of vector is 2 it gives error…
this questio is from leetcode
here is link:

#2

The problem is not with vector of size 2, but that you are not iterating in the backward direction.

#3

For example, for cases like {10, 9, 8}, your code will output 10, but the answer should be 8 + 8 + 8 = 24.