Codeforces Round 986 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
2028 Codeforces Round 986 (Div. 2) FINISHED False 7200 45152723 Nov. 10, 2024, 3:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 533 ) F Alice's Adventures in Addition PROGRAMMING bitmasks dp implementation

Note that the memory limit is unusual. The Cheshire Cat has a riddle for Alice: given (n) integers (a_1, a_2, \ldots, a_n) and a target (m), is there a way to insert (+) and (\times) into the circles of the expression ()a_1 \circ a_2 \circ \cdots \circ a_n = m() to make it true? We follow the usual order of operations: (\times) is done before (+). Although Alice is excellent at chess, she is not good at math. Please help her so she can find a way out of Wonderland! Each test contains multiple test cases. The first line of input contains a single integer (t) ((1 \le t \le 10^4)) — the number of test cases. The description of the test cases follows. The first line of each test case contains two integers (n, m) ((1\le n\le 2\cdot 10^5); (1\le m\le 10^4)) — the number of integers and the target, respectively. The second line of each test case contains (n) integers (a_1, a_2, \ldots, a_n) ((0\le a_i\le 10^4)) — the elements of the array (a). The sum of (n) over all test cases does not exceed (2\cdot 10^5). For each test case, output " YES " without quotes if it is possible to get the target by inserting (+) or (\times) and " NO " otherwise. You can output each letter in any case (for example, the strings " yEs ", " yes ", " Yes ", and " YES " will be recognized as a positive answer). Possible solutions for the first four test cases are shown below. ()\begin{align*} 2 \times 1 + 1 \times 1 \times 2 &= 4 \\ 2 \times 1 + 1 + 1 \times 2 &= 5 \\ 2 \times 1 + 1 + 1 + 2 &= 6 \\ 2 + 1 + 1 + 1 + 2 &= 7 \\ \end{align*}() It is impossible to get a result of (8) in the fifth test case.

Tutorials

Codeforces Round 986 (Div. 2) Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
290996792 phsads F Nov. 11, 2024, 3 a.m. OK C++17 (GCC 7-32) TESTS 67 437 102400
290964252 T404 F Nov. 10, 2024, 6:38 p.m. OK C++17 (GCC 7-32) TESTS 66 546 102400
290974853 BernardoP F Nov. 10, 2024, 8:37 p.m. OK C++17 (GCC 7-32) TESTS 66 1155 102400
290961561 Xu_Hongxi F Nov. 10, 2024, 6:20 p.m. OK C++17 (GCC 7-32) TESTS 66 1186 2457600
291006059 potato167 F Nov. 11, 2024, 5:15 a.m. OK C++17 (GCC 7-32) TESTS 67 1484 102400
290962282 dmraykhan F Nov. 10, 2024, 6:24 p.m. OK C++17 (GCC 7-32) TESTS 66 2374 307200
290962479 dmraykhan F Nov. 10, 2024, 6:25 p.m. OK C++17 (GCC 7-32) TESTS 66 2984 307200
290955148 sweet_dream F Nov. 10, 2024, 5:34 p.m. OK C++20 (GCC 13-64) TESTS 66 203 18636800
290958136 Fysty F Nov. 10, 2024, 6 p.m. OK C++20 (GCC 13-64) TESTS 66 437 921600
290981321 Mamedov F Nov. 10, 2024, 10:44 p.m. OK C++20 (GCC 13-64) TESTS 67 468 102400
290990257 NuclearMint F Nov. 11, 2024, 12:41 a.m. OK C++20 (GCC 13-64) TESTS 67 483 102400
290957247 Intellegent F Nov. 10, 2024, 5:57 p.m. OK C++20 (GCC 13-64) TESTS 66 546 102400
290993076 Ruayhb F Nov. 11, 2024, 1:48 a.m. OK C++20 (GCC 13-64) TESTS 67 625 8089600
290966138 VitalyKo F Nov. 10, 2024, 6:55 p.m. OK C++20 (GCC 13-64) TESTS 66 750 512000
290955187 contee F Nov. 10, 2024, 5:34 p.m. OK C++20 (GCC 13-64) TESTS 66 843 102400
290966534 kaiboy F Nov. 10, 2024, 6:58 p.m. OK C++20 (GCC 13-64) TESTS 66 859 2457600
290974962 misteg168 F Nov. 10, 2024, 8:38 p.m. OK C++20 (GCC 13-64) TESTS 66 999 102400
290959417 wish_rajput F Nov. 10, 2024, 6:07 p.m. OK C++23 (GCC 14-64, msys2) TESTS 66 359 18636800
290956776 BallBreaker F Nov. 10, 2024, 5:55 p.m. OK C++23 (GCC 14-64, msys2) TESTS 66 718 102400
291000624 modwwe F Nov. 11, 2024, 4:01 a.m. OK C++23 (GCC 14-64, msys2) TESTS 67 718 2457600
290981685 Liudas F Nov. 10, 2024, 10:55 p.m. OK C++23 (GCC 14-64, msys2) TESTS 67 1015 102400
291009315 WRKRW F Nov. 11, 2024, 5:58 a.m. OK C++23 (GCC 14-64, msys2) TESTS 67 1030 1638400
290982092 Liudas F Nov. 10, 2024, 11:07 p.m. OK C++23 (GCC 14-64, msys2) TESTS 67 1046 0
290999221 SmuggingSpon F Nov. 11, 2024, 3:41 a.m. OK C++23 (GCC 14-64, msys2) TESTS 67 1062 102400
291000113 hhhyh F Nov. 11, 2024, 3:54 a.m. OK C++23 (GCC 14-64, msys2) TESTS 67 1093 102400
290957309 irkstepanov F Nov. 10, 2024, 5:57 p.m. OK C++23 (GCC 14-64, msys2) TESTS 66 1124 102400
290964375 _greedy F Nov. 10, 2024, 6:39 p.m. OK C++23 (GCC 14-64, msys2) TESTS 66 1124 4812800
290975894 Dukkha F Nov. 10, 2024, 8:53 p.m. OK Java 21 TESTS 67 1436 1228800
290978506 PaciukZvichainyi F Nov. 10, 2024, 9:39 p.m. OK Rust 2021 TESTS 67 624 5939200

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