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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 |
|---|---|---|---|---|---|---|
| ( 2628 ) | F | Parabola Independence | PROGRAMMING | dp graphs math |
You are given a set of (n) quadratic functions (F=\{f_1,f_2,\ldots,f_n \}), where (f_i(x)=a_i x^2 + b_i x + c_i). Two functions (f) and (g) are called independent if (f(x) \neq g(x)) for all (x \in \mathbb{R}). Also, a set of functions (G=\{g_1,g_2,\ldots,g_k\}) is called organized if the two functions (g_i) and (g_j) are independent for all (1 \le i \lt j \le |G|). For each (i=1,2,\ldots,n), please find the size of the largest organized subset of (F) that contains (f_i) as an element. Each test contains multiple test cases. The first line contains the number of test cases (t) ((1 \le t \le 10^4)). The description of the test cases follows. The first line of each test case contains a single integer (n) ((1 \le n \le 3000)). Each of the (n) following lines contains three integers (a_i), (b_i), (c_i) denoting the function (f_i) ((-10^6 \le a_i, b_i, c_i \le 10^6), (a_i \neq 0)). It is guaranteed that the functions in one test case are pairwise distinct. It is guaranteed that the sum of (n^2) over all test cases does not exceed (3000^2). For each test case, output (n) integers (s_1,s_2,\ldots,s_n), where (s_i) is the size of the largest organized subset that contains (f_i). In the first test case, the functions are as follows: (f_1(x)=x^2+2x-1); (f_2(x)=-3x^2-3); (f_3(x)=-x^2+4x-5); (f_4(x)=x^2+2x-4). The functions' graphs are as shown below: The largest organized subsets of (F) containing each function are as follows: (\{f_1,f_3,f_4\}) is the largest organized subset that contains (f_1); (\{f_1,f_2\}) is the largest organized subset that contains (f_2); (\{f_1,f_3,f_4\}) is the largest organized subset that contains (f_3); (\{f_1,f_3,f_4\}) is the largest organized subset that contains (f_4). |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 363221381 | UpperHand | F | Feb. 15, 2026, 10:58 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 265 | 102400 | ||
| 363237266 | z.leisure | F | Feb. 16, 2026, 5:25 a.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 281 | 102400 | ||
| 363200415 | cherish-to | F | Feb. 15, 2026, 6:15 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 281 | 102400 | ||
| 363204657 | Harigton | F | Feb. 15, 2026, 6:52 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 296 | 102400 | ||
| 363188831 | PiyushSutar78 | F | Feb. 15, 2026, 5:09 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 296 | 102400 | ||
| 363230040 | IamHereForFun | F | Feb. 16, 2026, 3:25 a.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 296 | 204800 | ||
| 363194735 | Lapbreeze | F | Feb. 15, 2026, 5:35 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 296 | 204800 | ||
| 363206135 | Jacob_Ren | F | Feb. 15, 2026, 7:07 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 296 | 59596800 | ||
| 363185300 | naitikjainn | F | Feb. 15, 2026, 5:01 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 312 | 0 | ||
| 363209200 | aaravb | F | Feb. 15, 2026, 7:43 p.m. | OK | C++17 (GCC 7-32) | TESTS | 25 | 312 | 102400 | ||
| 363200483 | -Shu- | F | Feb. 15, 2026, 6:16 p.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 203 | 102400 | ||
| 363229221 | a_foolish_OIer | F | Feb. 16, 2026, 3:05 a.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 203 | 16896000 | ||
| 363187979 | kartel | F | Feb. 15, 2026, 5:07 p.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 203 | 60211200 | ||
| 363230831 | ivatopuria | F | Feb. 16, 2026, 3:40 a.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 218 | 0 | ||
| 363212342 | ItsNotMeItsYou | F | Feb. 15, 2026, 8:18 p.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 218 | 0 | ||
| 363200605 | -..- | F | Feb. 15, 2026, 6:17 p.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 218 | 0 | ||
| 363235593 | OP_JASH | F | Feb. 16, 2026, 5:01 a.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 218 | 102400 | ||
| 363223113 | Mirror1001 | F | Feb. 16, 2026, 12:05 a.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 218 | 102400 | ||
| 363200831 | pokeland157 | F | Feb. 15, 2026, 6:19 p.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 218 | 102400 | ||
| 363194877 | AaryamanPSingh | F | Feb. 15, 2026, 5:36 p.m. | OK | C++20 (GCC 13-64) | TESTS | 25 | 218 | 102400 | ||
| 363200270 | riacn | F | Feb. 15, 2026, 6:14 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 187 | 0 | ||
| 363190739 | shubhrankar | F | Feb. 15, 2026, 5:13 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 187 | 0 | ||
| 363186018 | SEmad3130 | F | Feb. 15, 2026, 5:02 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 187 | 0 | ||
| 363204182 | Jay_M_2421 | F | Feb. 15, 2026, 6:47 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 203 | 0 | ||
| 363193561 | Continue90666 | F | Feb. 15, 2026, 5:28 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 203 | 0 | ||
| 363188982 | Gapryong_Kim | F | Feb. 15, 2026, 5:09 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 203 | 0 | ||
| 363186669 | RedSalt | F | Feb. 15, 2026, 5:04 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 203 | 0 | ||
| 363193051 | alternn | F | Feb. 15, 2026, 5:25 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 203 | 102400 | ||
| 363187866 | gyfy_dyx | F | Feb. 15, 2026, 5:07 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 203 | 102400 | ||
| 363187018 | Vt19 | F | Feb. 15, 2026, 5:05 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 25 | 203 | 102400 | ||
| 363216347 | NenadDapic | F | Feb. 15, 2026, 9:11 p.m. | OK | FPC | TESTS | 25 | 718 | 45158400 | ||
| 363194162 | pengin_2000 | F | Feb. 15, 2026, 5:31 p.m. | OK | GNU C11 | TESTS | 25 | 281 | 204800 | ||
| 363188014 | MUKESH_KUMAR_K | F | Feb. 15, 2026, 5:07 p.m. | OK | Java 21 | TESTS | 25 | 531 | 1536000 | ||
| 363185793 | rdarshan2005 | F | Feb. 15, 2026, 5:02 p.m. | OK | Java 21 | TESTS | 25 | 546 | 1228800 | ||
| 363189701 | nitish_001 | F | Feb. 15, 2026, 5:11 p.m. | OK | Java 21 | TESTS | 25 | 578 | 1126400 | ||
| 363188979 | vsvsvsarma | F | Feb. 15, 2026, 5:09 p.m. | OK | Java 21 | TESTS | 25 | 609 | 8294400 | ||
| 363196470 | rachit.gupta | F | Feb. 15, 2026, 5:46 p.m. | OK | Java 21 | TESTS | 25 | 718 | 1331200 | ||
| 363196457 | shubhansh_gupta | F | Feb. 15, 2026, 5:46 p.m. | OK | Java 21 | TESTS | 25 | 718 | 1331200 | ||
| 363188828 | ahmeddhibi | F | Feb. 15, 2026, 5:09 p.m. | OK | Java 21 | TESTS | 25 | 812 | 121651200 | ||
| 363213372 | devanshmalhotra17 | F | Feb. 15, 2026, 8:31 p.m. | OK | Java 21 | TESTS | 25 | 921 | 2355200 | ||
| 363184957 | code_legion | F | Feb. 15, 2026, 5 p.m. | OK | Java 21 | TESTS | 25 | 1046 | 157388800 | ||
| 363205485 | GaleStarr | F | Feb. 15, 2026, 7:01 p.m. | OK | Java 21 | TESTS | 25 | 1265 | 258457600 | ||
| 363187334 | ap.23cs8031 | F | Feb. 15, 2026, 5:05 p.m. | OK | Java 8 | TESTS | 25 | 1468 | 0 | ||
| 363185253 | tryingDream | F | Feb. 15, 2026, 5:01 p.m. | OK | Kotlin 2.2 | TESTS | 25 | 437 | 25497600 | ||
| 363185359 | SarthakSharma18 | F | Feb. 15, 2026, 5:01 p.m. | OK | PHP | TESTS | 25 | 2437 | 8396800 | ||
| 363190788 | PrathamB_math | F | Feb. 15, 2026, 5:13 p.m. | OK | PyPy 3 | TESTS | 25 | 2625 | 12492800 | ||
| 363198428 | Only365 | F | Feb. 15, 2026, 6 p.m. | OK | PyPy 3-64 | TESTS | 25 | 515 | 10240000 | ||
| 363222619 | Little_Sheep_Yawn | F | Feb. 15, 2026, 11:42 p.m. | OK | PyPy 3-64 | TESTS | 25 | 515 | 12697600 | ||
| 363235822 | gameon030609 | F | Feb. 16, 2026, 5:04 a.m. | OK | PyPy 3-64 | TESTS | 25 | 531 | 10035200 | ||
| 363227571 | alwaysCE | F | Feb. 16, 2026, 2:28 a.m. | OK | PyPy 3-64 | TESTS | 25 | 531 | 100044800 | ||
| 363217550 | the_last_smilodon | F | Feb. 15, 2026, 9:30 p.m. | OK | PyPy 3-64 | TESTS | 25 | 546 | 72601600 | ||
| 363225955 | weii2000 | F | Feb. 16, 2026, 1:37 a.m. | OK | PyPy 3-64 | TESTS | 25 | 546 | 99737600 | ||
| 363187140 | TLON | F | Feb. 15, 2026, 5:05 p.m. | OK | PyPy 3-64 | TESTS | 25 | 562 | 74137600 | ||
| 363228097 | kamio-misuzu | F | Feb. 16, 2026, 2:38 a.m. | OK | PyPy 3-64 | TESTS | 25 | 593 | 10547200 | ||
| 363185786 | IllegalRazer | F | Feb. 15, 2026, 5:02 p.m. | OK | PyPy 3-64 | TESTS | 25 | 609 | 8704000 | ||
| 363191221 | podpiv_ass | F | Feb. 15, 2026, 5:14 p.m. | OK | PyPy 3-64 | TESTS | 25 | 609 | 170598400 | ||
| 363189597 | alok_chandra01 | F | Feb. 15, 2026, 5:11 p.m. | OK | Python 3 | TESTS | 25 | 2796 | 62464000 | ||
| 363190746 | RoshanKumar2525 | F | Feb. 15, 2026, 5:13 p.m. | OK | Python 3 | TESTS | 25 | 2828 | 178585600 | ||
| 363188421 | JashCodes | F | Feb. 15, 2026, 5:08 p.m. | OK | Python 3 | TESTS | 25 | 2890 | 92774400 | ||
| 363199679 | patacca | F | Feb. 15, 2026, 6:09 p.m. | OK | Rust 2024 | TESTS | 25 | 171 | 11878400 | ||
| 363226975 | emoreira | F | Feb. 16, 2026, 2:13 a.m. | OK | Rust 2024 | TESTS | 25 | 328 | 48435200 |
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