摘要:
"更好的阅读体验" Portal Portal1: "Luogu" Portal2: "POJ" Description One cow from each of N farms $(1 \le N \le 1000)$ conveniently numbered $1 \cdots N$ is g 阅读全文
摘要:
"更好的阅读体验" Portal Portal1: "POJ" Portal2: "Luogu" Description One cow from each of N farms $(1 \le N \le 1000)$ conveniently numbered $1 \cdots N$ is g 阅读全文