[c++/en] container -> vector (#2838)

* container -> vector

fixed errors:
- "vector_name" and "Vector_name" (different case) would have resulted in a compile time error, now: "my_vector"

enhancements:
- typedef for consistency
- two push_backs to show its purpose
- both iteration types now have a working execution block (both output the vector's content)
- the first "classic loop" now also shows the operator [], which therefor is removed from below
- include and for with a white spaces for readability

* removed the typedef

the `typedef` was used to show that we will be using `string` as our base for all operations, but we are free to use any other type; of course it is technically not needed and might look like a redundancy. the two `cin` also look redundant, so I changed this into one `cin` and two `push_back`s

0 files changed, 0 insertions, 0 deletions