These are two cheat sheets I put together describing both basic C++ syntax (mostly C++11) and many common data structures and algorithms in C++, which I've used to study for my past interviews at Google, NASA, etc.
Hopefully you find them useful, and please open an issue or submit a PR if you find incorrect or missing information!
P.S. - I didn't get the job at Google 😉
Many thanks to the following for their contributions: