Jian Lan

When "sudo make install", No rule to make target `bin/potion-s', needed by `pkg/potion-0.1.1106-x86_64-apple-darwin13.0.0-devel.tar.gz'.

2

make [DEBUG=1] with no error. make test with no error. When "sudo make install", I get this: ``` /Applications/Xcode.app/Contents/Developer/usr/bin/make -f dist.mak install PREFIX="/usr/local" rm -rf dist mkdir -p dist dist/bin...

The ```numList ⇒ numList``` in ```nums.flatMap(numList ⇒ numList).filter(_ % 2 == 0) should be(result)``` can be ```identity```.

There should be a vector deepcopy function in 23.15

1

Hi buntine, I think there should be a vector deepcopy function in the solution of 23.15. Your solution has a bug that some components reference to the same vector, and...