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Some problems for the list

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Segcolt
2026-04-14 17:08:13 -03:00
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@@ -17,6 +17,11 @@ A little collection of interesting problems that I randomly decided to do.
Another incredibly annoying problem, beware... Another incredibly annoying problem, beware...
- [D. Counting Points]](https://codeforces.com/problemset/problem/2074/D)
I remember that I couldn't solve it before... Now it's painfully easy to do, but the
idea might be interesting to show in a class or something.
## Data structures ## Data structures
- [D. Recommendations](https://codeforces.com/contest/2042/problem/D) - [D. Recommendations](https://codeforces.com/contest/2042/problem/D)
@@ -41,6 +46,11 @@ A little collection of interesting problems that I randomly decided to do.
Can be solved in two ways, but the sparse table one is interesting, although Can be solved in two ways, but the sparse table one is interesting, although
the other way seems more versatile. the other way seems more versatile.
- [A. Ntarsis' Set](https://codeforces.com/problemset/problem/1852/A)
REALLY good binary search problem, amazing to do and think about, the binary search isn't
obvious at all.
## Reroot ## Reroot
- [D. Tree XOR](https://codeforces.com/problemset/problem/1882/D) - [D. Tree XOR](https://codeforces.com/problemset/problem/1882/D)