Google Code-in continues and Kevin Krammer gives insights from the KDE PIM perspective:
Several changes to the KDE PIM code contain work by Google Code-in students who worked on improving the KDE PIM code quality by addressing issues found by my KDE's static code analyser tool Krazy.
In just a couple of days the Krazy count of all three PIM modules combined (kdepimlibs, kdepim, kdepim-runtime) dropped by 465. This does not include the API documentation issues found by a different Krazy check and also being addressed by one of the GCI students.