Open kjd123456 opened 4 years ago
https://kjd123456.github.io/post/usaco-2008-jan-silverloj10074-jia-she-dian-hua-xian/
blog of Anqui
https://kjd123456.github.io/post/usaco-2008-jan-silverloj10074-jia-she-dian-hua-xian/
blog of Anqui