Educational Codeforces Round 184 (Rated for Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
2169 Educational Codeforces Round 184 (Rated for Div. 2) FINISHED False 7200 13274723 Nov. 14, 2025, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 994 ) E Points Selection PROGRAMMING dp geometry greedy

Alice and Bob are playing with points on the XY plane. Initially, there are (n) points on the plane: the (i)-th point is located at ((x_i, y_i)) and has a cost of (c_i). The game consists of two stages: First, Alice selects some points (possibly none, but not all) and removes them from the field. Then, Bob draws a rectangle with sides parallel to the coordinate axes, such that all remaining points lie inside or on the boundary of this rectangle. The rectangle can degenerate into a line segment or even a point. After that, the game ends and the total score is calculated. The total score of the game is the sum of the costs of the removed points by Alice and the perimeter of the rectangle drawn by Bob. Alice wants to maximize the score, while Bob wants to minimize it. Determine the total score of the game if both Alice and Bob play optimally. The perimeter of the rectangle is equal to the sum of the lengths of all its four sides. Therefore, even if the rectangle degenerates into a line segment of length (k), its perimeter will be (2k). The perimeter of a rectangle that degenerates into a point is (0). The first line contains a single integer (t) ((1 \le t \le 10^4)) — the number of test cases. The first line of each test case contains a single integer (n) ((1 \le n \le 3 \cdot 10^5)) — the number of points on the plane. The second line of each test case contains (n) integers (x_1, x_2, \dots, x_n) ((0 \le x_i \le 10^{15})) — the (x)-coordinates of the points. The third line contains (n) integers (y_1, y_2, \dots, y_n) ((0 \le y_i \le 10^{15})) — the (y)-coordinates of the points. The fourth line contains (n) integers (c_1, c_2, \dots, c_n) ((0 \le c_i \le 10^9)) — the costs of the points. Additional constraints on the input: in one test case, all points are pairwise distinct; the total number of points across all test cases does not exceed (3 \cdot 10^5). For each test

Tutorials

Educational Codeforces Round 184 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
349031643 -Guts E Nov. 15, 2025, 1:35 a.m. OK C++17 (GCC 7-32) TESTS 27 312 3276800
349024951 VaHiX E Nov. 14, 2025, 10:15 p.m. OK C++17 (GCC 7-32) TESTS 27 343 7270400
348982379 -Aisaka-Taiga- E Nov. 14, 2025, 4:24 p.m. OK C++17 (GCC 7-32) TESTS 27 343 7270400
349018530 tomcr000se E Nov. 14, 2025, 8:33 p.m. OK C++17 (GCC 7-32) TESTS 27 358 3276800
349003026 richardl02 E Nov. 14, 2025, 6:10 p.m. OK C++17 (GCC 7-32) TESTS 27 358 3584000
348987158 LiangMoon E Nov. 14, 2025, 4:32 p.m. OK C++17 (GCC 7-32) TESTS 27 359 7270400
348986882 Lion_2056 E Nov. 14, 2025, 4:32 p.m. OK C++17 (GCC 7-32) TESTS 27 390 3276800
348981827 JeffTheGit E Nov. 14, 2025, 4:22 p.m. OK C++17 (GCC 7-32) TESTS 27 390 3276800
348985355 ninh69 E Nov. 14, 2025, 4:29 p.m. OK C++17 (GCC 7-32) TESTS 27 406 24064000
348985759 ParsaPordastan E Nov. 14, 2025, 4:30 p.m. OK C++17 (GCC 7-32) TESTS 27 421 3276800
348988342 ManasaLGM E Nov. 14, 2025, 4:34 p.m. OK C++20 (GCC 13-64) TESTS 27 233 3276800
348984311 wuhudsm E Nov. 14, 2025, 4:27 p.m. OK C++20 (GCC 13-64) TESTS 27 233 24064000
349009223 ALAov E Nov. 14, 2025, 6:59 p.m. OK C++20 (GCC 13-64) TESTS 27 234 3276800
348982235 galinapavlovna E Nov. 14, 2025, 4:23 p.m. OK C++20 (GCC 13-64) TESTS 27 234 3276800
349047237 samcpp E Nov. 15, 2025, 5:33 a.m. OK C++20 (GCC 13-64) TESTS 27 249 3276800
349023073 YuukiS E Nov. 14, 2025, 9:40 p.m. OK C++20 (GCC 13-64) TESTS 27 249 3276800
349002489 higherlow25 E Nov. 14, 2025, 6:06 p.m. OK C++20 (GCC 13-64) TESTS 27 249 3276800
348985494 latanchar E Nov. 14, 2025, 4:29 p.m. OK C++20 (GCC 13-64) TESTS 27 249 3276800
348985803 Mohammad_Hacker E Nov. 14, 2025, 4:30 p.m. OK C++20 (GCC 13-64) TESTS 27 249 3379200
349050683 The_Caspian_Sea E Nov. 15, 2025, 6:06 a.m. OK C++20 (GCC 13-64) TESTS 27 249 7270400
348995503 vedantkohad E Nov. 14, 2025, 5:13 p.m. OK C++23 (GCC 14-64, msys2) TESTS 27 202 3584000
349036498 enslaved E Nov. 15, 2025, 3:11 a.m. OK C++23 (GCC 14-64, msys2) TESTS 27 218 2252800
349030831 Joler_ E Nov. 15, 2025, 1:15 a.m. OK C++23 (GCC 14-64, msys2) TESTS 27 218 3379200
348992009 birsnot E Nov. 14, 2025, 4:51 p.m. OK C++23 (GCC 14-64, msys2) TESTS 27 218 3379200
349040661 behzinga E Nov. 15, 2025, 4:14 a.m. OK C++23 (GCC 14-64, msys2) TESTS 27 233 3379200
348986695 Sunb1m E Nov. 14, 2025, 4:31 p.m. OK C++23 (GCC 14-64, msys2) TESTS 27 233 3379200
349030062 Joler_ E Nov. 15, 2025, 12:54 a.m. OK C++23 (GCC 14-64, msys2) TESTS 27 234 3379200
349001061 Shoeib E Nov. 14, 2025, 5:55 p.m. OK C++23 (GCC 14-64, msys2) TESTS 27 234 3379200
348992889 freeloop2 E Nov. 14, 2025, 4:56 p.m. OK C++23 (GCC 14-64, msys2) TESTS 27 234 3379200
349019130 IanISam E Nov. 14, 2025, 8:40 p.m. OK C++23 (GCC 14-64, msys2) TESTS 27 249 3379200
348991089 Ab_hoga_real_Cumback E Nov. 14, 2025, 4:46 p.m. OK Java 21 TESTS 27 921 30310400
349007296 gua069 E Nov. 14, 2025, 6:44 p.m. OK Java 8 TESTS 27 530 19046400
348992355 denilb E Nov. 14, 2025, 4:53 p.m. OK PyPy 3-64 TESTS 27 1155 55398400
349038859 Little_Sheep_Yawn E Nov. 15, 2025, 3:47 a.m. OK PyPy 3-64 TESTS 27 1296 63283200
349029184 mkawa2 E Nov. 15, 2025, 12:25 a.m. OK PyPy 3-64 TESTS 27 1359 67891200
349032867 IcyGirl E Nov. 15, 2025, 2:02 a.m. OK PyPy 3-64 TESTS 27 1609 94720000
349024765 VaHiX E Nov. 14, 2025, 10:11 p.m. OK PyPy 3-64 TESTS 27 1812 97689600
349002370 Monster027 E Nov. 14, 2025, 6:05 p.m. OK Rust 2024 TESTS 27 1217 41574400
349001073 pradeep027 E Nov. 14, 2025, 5:55 p.m. OK Rust 2024 TESTS 27 1296 41574400

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