some examples
Squashed 'github.com/mindreframer/source-data-structures-and-algorithms-with-oop/' content from commit 771e705

git-subtree-dir: github.com/mindreframer/source-data-structures-and-algorithms-with-oop
git-subtree-split: 771e7059aa4e671049761a8fddd5a11036e074f8
Merge commit '0b47c26467d891a507bb4804e525925dcba01669' as 'github.com/mindreframer/source-data-structures-and-algorithms-with-oop'
projects.txt updated