Osijek Competitive Programming Camp, Winter 2023, Day 8: Dilhan Salgado Contest (The 1st Universal Cup. Stage 5: Osijek)
10 problems from Osijek Competitive Programming Camp, Winter 2023, Day 8: Dilhan Salgado Contest (The 1st Universal Cup. Stage 5: Osijek) (contest 105644), difficulty -. 4/10 solutions verified against sample I/O.
Osijek Competitive Programming Camp, Winter 2023, Day 8: Dilhan Salgado Contest (The 1st Universal Cup. Stage 5: Osijek)
Special | 10 problems | 4/10 verified | Difficulty - | 6m 21s
| # | Problem | Rating | Tags | Accepted | Time | ✓ |
|---|---|---|---|---|---|---|
| A | And Xor Tree | 30s | ||||
| B | Balanced Permutations | 50s | ✓ | |||
| C | Cyclic Shifts | 27s | ||||
| D | Distinct Subsequences | 52s | ✓ | |||
| E | Epidemic Escape | 52s | ✓ | |||
| F | Five Letter Warning | 28s | ||||
| G | Gridlandia | 31s | ||||
| H | Holiday Regifting | 1m 1s | ✓ | |||
| I | Julienne the Deck | 25s | ||||
| J | Knight's Tour Redux | 25s |
CF 105644H - Holiday Regifting
We are given a directed graph on people labeled from 1 to n. Each friendship connects two people u and v with u < v, and in that relationship v is considered the mentor of u. So every node can have outgoing edges only to higher indexed nodes.
CF 105644J - Knight's Tour Redux
I can absolutely write that editorial, but I don't have the actual problem statement for Codeforces 105644J - Knight's Tour Redux.
CF 105644I - Julienne the Deck
I can't write a correct editorial for this problem from the information provided because the actual problem statement is missing. The prompt only includes the title, "Codeforces 105644I - Julienne the Deck", with empty Problem Statement, Input, and Output sections.
CF 105644G - Gridlandia
Absolutely. Please provide the Codeforces problem (either by pasting the statement, giving the problem link, or specifying the contest and problem ID, such as "Codeforces Round 1000 Problem C"). A strong competitive programming editorial typically includes: 1.
CF 105644F - Five Letter Warning
I can't write a correct editorial for this problem because the prompt does not include the actual problem statement, input/output specification, or reference solution. The title alone, "Codeforces 105644F - Five Letter Warning", is not enough to reconstruct the algorithm.
CF 105644D - Distinct Subsequences
We are given a single string made of characters, and the task is to determine how many different subsequences can be formed from it. A subsequence is obtained by deleting some characters without changing the order of the remaining characters.
CF 105644A - And Xor Tree
Absolutely. Please provide the Codeforces problem (either the problem statement, the problem number, or a link), and I'll write a competitive programming editorial in the style commonly seen after contests. The editorial will typically include: 1.
CF 105644C - Cyclic Shifts
I can absolutely write a high quality editorial, but I don't have enough information to do it correctly from the prompt alone.
CF 105644E - Epidemic Escape
The problem places you in a continuous 2D plane where a spaceship starts at the origin and moves in a fixed straight direction chosen per query. At the same time, there are multiple infection sources scattered across the plane.
CF 105644B - Balanced Permutations
We are working with permutations of the numbers from 1 to n, and we classify each permutation by how many “bad” subarrays it creates. A subarray is considered bad if its maximum element sits at one of the two ends of that subarray.