How to read a file into vector in C++?

Question

I need to read from a .data or .txt file containing a new float number on each line into a vector.

I have searched far and wi

Answer 1

1. In the loop you are assigning value rather than comparing value so

i=((Main.size())-1) -> i=(-1) since Main.size()

Main[i] will yield "Vector Subscript out of Range" coz i = -1.

2. You get Main.size() as 0 maybe becuase its not it can't find the file. Give the file path and check the output. Also it would be good to initialize the variables.