RiOI 题目集合 1

RiOI 历届题目集合。为了完整性也放入了符合主题库标准的 Div.Ex 题目。 不符合主题库标准的 Ex 题目链接： - [R1 Ex](/problem/T305772) - [R2 Ex](/problem/T351681) - [R4 Ex](/contest/195381) ## 历史比赛 - #### RiOI Round 1 [Div.1](https://www.luogu.com.cn/contest/96466) [Div.2](https://www.luogu.com.cn/contest/96467) [Div.Ex](https://www.luogu.com.cn/contest/97348) - #### RiOI Round 2 [Div.1](https://www.luogu.com.cn/contest/122187) [Div.2](https://www.luogu.com.cn/contest/122184) [Div.Ex](https://www.luogu.com.cn/contest/122220) - #### RiOI Round -1 [Div.2](https://www.luogu.com.cn/contest/141594) - #### RiOI Round 3 [Div.1](https://www.luogu.com.cn/contest/147239) [Div.2](https://www.luogu.com.cn/contest/147237) [Div.Ex](https://www.luogu.com.cn/contest/147584) - #### RiOI Round 4 [Div.1](https://www.luogu.com.cn/contest/196629) [Div.2](https://www.luogu.com.cn/contest/196630) [Div.Ex](https://www.luogu.com.cn/contest/195381) - #### RiOI Round 6 [Div.1](https://www.luogu.com.cn/contest/232940) - #### RiOI Round 5 [Div.1](https://codeforces.com/contest/2135) [Div.2](https://codeforces.com/contest/2136)