526互联

1844c

CodeForces 1844C Particles

[洛谷传送门](https://www.luogu.com.cn/problem/CF1844C "洛谷传送门") [CF 传送门](https://codeforces.com/problemset/problem/1844/C "CF 传送门") 原题是 [[ARC092E] Both Side ......
CodeForces Particles 1844C 1844
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