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ContestId |
Name |
Phase |
Frozen |
Duration (Seconds) |
Relative Time |
Start Time |
|---|---|---|---|---|---|---|
| 2195 | Codeforces Round 1080 (Div. 3) | FINISHED | False | 9000 | 5238923 | Feb. 15, 2026, 2:45 p.m. |
Solved |
Index |
Name |
Type |
Tags |
Community Tag |
Rating |
|---|---|---|---|---|---|---|
| ( 1014 ) | G | Idiot First Search and Queries | PROGRAMMING | binary search data structures graphs trees |
This problem shares the definitions with problem E. However, it does not ask for the same answer. There is a binary tree of (n+1) vertices ( (n) is odd ), with vertices labeled (0,1,\ldots,n). At most one letter can be written on each vertex of the tree, and all vertices initially have nothing written on them. The root of the tree is vertex (0). In the tree, vertex (0) is the parent of vertex (1), while all other vertices have either (2) children or (0) children. Bob is lost in one vertex of the tree and wishes to escape the tree by reaching vertex (0). This is very easy for most people with common sense. However, since Bob is an idiot, he created a new way of traversing the tree; introducing the "Idiot First Search". When Bob is on vertex (v) ((1 \le v \le n)), Bob's movement is determined as follows: If vertex (v) is a leaf, Bob always moves to the parent of (v); otherwise, check the next few conditions. If nothing is written on vertex (v), Bob writes ' L ' on vertex (v) and moves to the left child of (v); If ' L ' is written on vertex (v), Bob overwrites it to ' R ' and moves to the right child of (v); If ' R ' is written on vertex (v), Bob erases it and moves to the parent of (v). It takes exactly (1) second for Bob to move to an adjacent vertex, so Bob will take exactly (x) seconds to perform (x) moves. It has been shown that regardless of which vertex Bob starts on, Bob can reach vertex (0) in a finite (though possibly inexplicably large) amount of time. We don't know who proved it; surely it can't be Bob, but it is definitely proven. You are asked to answer (q) queries of the following kind: (v\;k): Assuming that Bob started from vertex (v), determine the vertex Bob is on after performing exactly (k) moves ((1 \le v \le n)). For each query, let (T_v) be the time taken to reach vertex (0) from vertex (v). Then, it is guarant |
| Codeforces Round 1080 (Div. 3) Editorial |
Submission Id |
Author(s) |
Index |
Submitted |
Verdict |
Language |
Test Set |
Tests Passed |
Time taken (ms) |
Memory Consumed (bytes) |
Tags |
Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 363184159 | TimeToPretend | G | Feb. 15, 2026, 4:58 p.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 781 | 91033600 | ||
| 363193034 | prakhar7472pk | G | Feb. 15, 2026, 5:25 p.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 781 | 124211200 | ||
| 363226817 | sabino1 | G | Feb. 16, 2026, 2:07 a.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 796 | 84992000 | ||
| 363205799 | Wpwkdhdjdkdj | G | Feb. 15, 2026, 7:04 p.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 812 | 235724800 | ||
| 363225657 | Darko2026 | G | Feb. 16, 2026, 1:27 a.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 859 | 80179200 | ||
| 363191060 | neijegdattnedtrappen | G | Feb. 15, 2026, 5:14 p.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 859 | 82739200 | ||
| 363237798 | linyuqin | G | Feb. 16, 2026, 5:32 a.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 875 | 77926400 | ||
| 363193705 | kliiiiiiiiiiiiiiiiiiio | G | Feb. 15, 2026, 5:28 p.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 875 | 138649600 | ||
| 363230081 | IamHereForFun | G | Feb. 16, 2026, 3:25 a.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 890 | 124108800 | ||
| 363189414 | Xu_YiXiang | G | Feb. 15, 2026, 5:11 p.m. | OK | C++17 (GCC 7-32) | TESTS | 19 | 921 | 167936000 | ||
| 363204221 | Mohammad_Hacker | G | Feb. 15, 2026, 6:47 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 578 | 80486400 | ||
| 363198996 | Forsaken270 | G | Feb. 15, 2026, 6:04 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 609 | 60313600 | ||
| 363222448 | pokeland157 | G | Feb. 15, 2026, 11:35 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 625 | 134758400 | ||
| 363212570 | Apteryxx | G | Feb. 15, 2026, 8:21 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 640 | 56627200 | ||
| 363189504 | HinaSnow | G | Feb. 15, 2026, 5:11 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 671 | 85299200 | ||
| 363208132 | ItsNotMeItsYou | G | Feb. 15, 2026, 7:30 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 671 | 99532800 | ||
| 363206966 | iwnl | G | Feb. 15, 2026, 7:16 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 687 | 87859200 | ||
| 363233173 | Fateless | G | Feb. 16, 2026, 4:26 a.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 703 | 178790400 | ||
| 363214005 | 0101100 | G | Feb. 15, 2026, 8:37 p.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 718 | 100659200 | ||
| 363239662 | Mango2011 | G | Feb. 16, 2026, 5:58 a.m. | OK | C++20 (GCC 13-64) | TESTS | 19 | 734 | 371302400 | ||
| 363195350 | The_Lion_King_777 | G | Feb. 15, 2026, 5:39 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 453 | 55398400 | ||
| 363222714 | cjoa | G | Feb. 15, 2026, 11:47 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 484 | 49049600 | ||
| 363184118 | yesdgd | G | Feb. 15, 2026, 4:58 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 484 | 57241600 | ||
| 363200212 | awoo | G | Feb. 15, 2026, 6:14 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 515 | 48844800 | ||
| 363236544 | resstifnurv | G | Feb. 16, 2026, 5:15 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 515 | 76902400 | ||
| 363202867 | Arpa | G | Feb. 15, 2026, 6:35 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 578 | 52940800 | ||
| 363185597 | Sujal_lohar | G | Feb. 15, 2026, 5:01 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 593 | 60006400 | ||
| 363189980 | sophie_fadina | G | Feb. 15, 2026, 5:12 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 593 | 83558400 | ||
| 363209537 | bonopo | G | Feb. 15, 2026, 7:47 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 609 | 53452800 | ||
| 363214206 | Arshia_Izadi | G | Feb. 15, 2026, 8:39 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 19 | 609 | 103526400 | ||
| 363196548 | rachit.gupta | G | Feb. 15, 2026, 5:47 p.m. | OK | Java 21 | TESTS | 19 | 1812 | 169574400 | ||
| 363196532 | shubhansh_gupta | G | Feb. 15, 2026, 5:47 p.m. | OK | Java 21 | TESTS | 19 | 1812 | 169574400 | ||
| 363215451 | devanshmalhotra17 | G | Feb. 15, 2026, 8:56 p.m. | OK | Java 21 | TESTS | 19 | 1937 | 155033600 | ||
| 363187335 | mikelou | G | Feb. 15, 2026, 5:05 p.m. | OK | PyPy 3-64 | TESTS | 19 | 984 | 101990400 | ||
| 363198463 | Only365 | G | Feb. 15, 2026, 6 p.m. | OK | PyPy 3-64 | TESTS | 19 | 1406 | 153907200 | ||
| 363210003 | tassei903 | G | Feb. 15, 2026, 7:53 p.m. | OK | PyPy 3-64 | TESTS | 19 | 1406 | 356249600 | ||
| 363185933 | Intrinix | G | Feb. 15, 2026, 5:02 p.m. | OK | PyPy 3-64 | TESTS | 19 | 1890 | 226713600 | ||
| 363203984 | Polynomu | G | Feb. 15, 2026, 6:45 p.m. | OK | PyPy 3-64 | TESTS | 19 | 2671 | 296448000 | ||
| 363190662 | Polynomu | G | Feb. 15, 2026, 5:13 p.m. | OK | PyPy 3-64 | TESTS | 19 | 3093 | 301158400 | ||
| 363190946 | Polynomu | G | Feb. 15, 2026, 5:14 p.m. | OK | PyPy 3-64 | TESTS | 19 | 3093 | 303616000 | ||
| 363200507 | patacca | G | Feb. 15, 2026, 6:16 p.m. | OK | Rust 2024 | TESTS | 19 | 796 | 120115200 |
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