传送门:洛谷 CF2121D 1709 | Codeforces D. 1709更佳的阅读体验:CF2121D 题解简要题意:给定两个长度为 $n$ 的数...
传送门:洛谷 CF2121D 1709 | Codeforces D. 1709更佳的阅读体验:CF2121D 题解简要题意:给定两个长度为 $n$ 的数...
传送门:洛谷 CF2121C Those Who Are With Us | Codeforces C. Those Who Are With Us更佳的...
传送门:洛谷 CF2121B Above the Clouds | Codeforces B. Above the Clouds更佳的阅读体验:CF212...