dijkstra-generator update from 1
Merge branch 'master' of https://github.com/allenshih1/PP-Dijkstra
Separate the adj list into two and add O2 flag to makefile
Merge branch 'master' of https://github.com/allenshih1/PP-Dijkstra
mapgen bug fix
Merge branch 'master' of https://github.com/allenshih1/PP-Dijkstra