Rextester has an input box as well and has a more usable interface than ideone which I have always felt was very clunky.
Coliru allows you to use multiple files, so you can create an file with your data and do something like this to input into your program:
g++ -std=c++11 -W -Wall main.cpp && cat /Archive/{{id}}/main.cpp | a.out
Note, LWS also has a nice interface and an input box but has been in read-only mode for a while now and it is not clear it is coming back online anytime soon if at all.
