[ioccc] add 2019 winners, with some minor edits

3 jobs for add-ioccc in 45 minutes and 12 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #382332
docker
build

00:45:12

failed #381766
docker
build

00:17:15

failed #381767
docker
build

00:44:35