CF 初学者快速上分

1000 - 1400

• You can write straight-forward simulation fast. (within 5-10 minutes)
• You can write brute force fast. (within 5-10 minutes)
• You can divide the problem into some cases in your brain or in your paper. (e.g.
  N=2, N=3, or N>=4)

https://codeforces.com/contests 板刷 CF div3 ABCD

https://kenkoooo.com/atcoder#/table/lukelmouse 板刷 AtCoder Beginner Contest BCD

要看那些简短的代码，厉害的人是怎么快速写出来的！

以上是总结<A Way to Practice Competitive Programming From Rating 1000 to 2400+ -> @E869120