2024-2025 ICPC Asia Jakarta Regional Contest (Unrated, Online Mirror, ICPC Rules, Teams Preferred)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
2045 2024-2025 ICPC Asia Jakarta Regional Contest (Unrated, Online Mirror, ICPC Rules, Teams Preferred) FINISHED False 18000 43376123 Dec. 1, 2024, 5:05 a.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 154 ) F Grid Game 3-angle PROGRAMMING games math 3000

Your friends, Anda and Kamu decide to play a game called Grid Game and ask you to become the gamemaster. As the gamemaster, you set up a triangular grid of size (N). The grid has (N) rows (numbered from (1) to (N)). Row (r) has (r) cells; the (c)-th cell of row (r) is denoted as ((r, c)). Before the game starts, (M) different cells (numbered from (1) to (M)) are chosen: at cell ((R_i, C_i)), you add (A_i) stones on it. You then give Anda and Kamu an integer (K) and commence the game. Anda and Kamu will take turns alternately with Anda taking the first turn. A player on their turn will do the following. Choose a cell ((r, c)) with at least one stone on it. Remove at least one but at most (K) stones from the chosen cell. For each cell ((x, y)) such that (r + 1 \leq x \leq \min(N, r + K)) and (c \leq y \leq c + x - r), add zero or more stones but at most (K) stones to cell ((x, y)). The following illustrations show all the possible cells in which you can add stones for (K = 3). You choose the cell ((2, 1)) for the left illustration and the cell ((4, 3)) for the right illustration. A player who is unable to complete their turn (because there are no more stones on the grid) will lose the game, and the opposing player wins. Determine who will win the game if both players play optimally. This problem is a multi-case problem. The first line consists of an integer (T) ((1 \leq T \leq 100)) that represents the number of test cases. Each test case starts with a single line consisting of three integers (N) (M) (K) ((1 \leq N \leq 10^9; 1 \leq M, K \leq 200\,000)). Then, each of the next (M) lines consists of three integers (R_i) (C_i) (A_i) ((1 \leq C_i \leq R_i \leq N; 1 \leq A_i \leq 10^9)). The pairs ((R_i, C_i)) are distinct. The sum of (M) across all test cases does not exceed (200\,000). For each case, output

Tutorials

raRzKDJLPHcUnqTcwvGznwEdKiDWjEkd.pdf

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
294143102 skylinebaby F Dec. 1, 2024, 6:09 a.m. OK C++17 (GCC 7-32) TESTS 24 187 102400 3000
294166684 StarSilk F Dec. 1, 2024, 9:07 a.m. OK C++17 (GCC 7-32) TESTS 24 280 4608000 3000
294210244 MetalPower F Dec. 1, 2024, 1:51 p.m. OK C++17 (GCC 7-32) TESTS 24 952 3174400 3000
294273453 Sadium F Dec. 1, 2024, 9:18 p.m. OK C++20 (GCC 13-64) TESTS 24 202 102400 3000
294174014 arnold518 YeongTree Karuna F Dec. 1, 2024, 9:54 a.m. OK C++20 (GCC 13-64) TESTS 24 218 6758400 3000
294162807 _Fake4Fun ilovemymind NguyenDangQuan F Dec. 1, 2024, 8:34 a.m. OK C++20 (GCC 13-64) TESTS 24 218 22630400 3000
294222475 Altr14 F Dec. 1, 2024, 3:08 p.m. OK C++20 (GCC 13-64) TESTS 24 265 9932800 3000
294170223 greatpaul2008 F Dec. 1, 2024, 9:39 a.m. OK C++20 (GCC 13-64) TESTS 24 436 3276800 3000
294154402 A_zjzj JCY_ 275307894a F Dec. 1, 2024, 7:18 a.m. OK C++20 (GCC 13-64) TESTS 24 530 6758400 3000
294161802 ksun48 ecnerwala F Dec. 1, 2024, 8:26 a.m. OK C++23 (GCC 14-64, msys2) TESTS 24 156 0 3000
294170719 GroupMatrix PEIMUDA F Dec. 1, 2024, 9:44 a.m. OK C++23 (GCC 14-64, msys2) TESTS 24 171 819200 3000
294301287 Inisioc F Dec. 2, 2024, 5:45 a.m. OK C++23 (GCC 14-64, msys2) TESTS 24 217 102400 3000
294169531 Savior-of-Cross F Dec. 1, 2024, 9:33 a.m. OK C++23 (GCC 14-64, msys2) TESTS 24 218 9216000 3000

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