Question

I am using eclipse 3.7.2 and uses MinGW gcc 4.6.1 as my compiler.
every thing works ok with , ,
and also I included header to my source file but I can’t define any vector type in the source file. when I comment out error line in the following image every thing went ok and compiles nice. I cant figure out the problem.

Answer 1

You miss the template argument as the error message suggests:

vector<int> arr;

replace int with the type you want to store