Codeforces Round 696 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1474 Codeforces Round 696 (Div. 2) FINISHED False 7200 126113063 Jan. 19, 2021, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 254 ) F 1 2 3 4 ... PROGRAMMING dp matrices

B'Igor had a sequence d_1, d_2, ... , d_n of integers. When Igor entered the classroom there was an integer x written on the blackboard. Igor generated sequence p using the following algorithm: For example, if x = 3 , and d = [1, -1, 2] , p will be equal [3, 4, 3, 4, 5] . Igor decided to calculate the length of the longest increasing subsequence of p and the number of them. A sequence a is a subsequence of a sequence b if a can be obtained from b by deletion of several (possibly, zero or all) elements. A sequence a is an increasing sequence if each element of a (except the first one) is strictly greater than the previous element. For p = [3, 4, 3, 4, 5] , the length of longest increasing subsequence is 3 and there are 3 of them: [ underline{3}, underline{4}, 3, 4, underline{5}] , [ underline{3}, 4, 3, underline{4}, underline{5}] , [3, 4, underline{3}, underline{4}, underline{5}] . The first line contains a single integer n ( 1 <= q n <= q 50 ) -- the length of the sequence d . The second line contains a single integer x ( -10^9 <= q x <= q 10^9 ) -- the integer on the blackboard. The third line contains n integers d_1, d_2, ldots, d_n ( -10^9 <= q d_i <= q 10^9 ). Print two integers: You should print only the second number modulo 998244353 . The first test case was explained in the statement. In the second test case p = [100, 101, 102, 103, 104, 105, 104, 103, 102, 103, 104, 105, 106, 107, 108] . In the third test case p = [1, 2, ldots, 2000000000] . '...

Tutorials

Codeforces Round #696 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
104841059 rainboy F Jan. 19, 2021, 5:34 p.m. OK GNU C11 TESTS 85 155 102400
104864057 nhho F Jan. 20, 2021, 2:39 a.m. OK GNU C++14 TESTS 85 31 204800
104864217 nhho F Jan. 20, 2021, 2:43 a.m. OK GNU C++14 TESTS 85 31 204800
104840452 IgorI F Jan. 19, 2021, 5:29 p.m. OK GNU C++17 TESTS 85 31 204800
104849796 aryanc403 F Jan. 19, 2021, 7:29 p.m. OK GNU C++17 TESTS 85 296 204800
104839869 Nero F Jan. 19, 2021, 5:24 p.m. OK GNU C++17 TESTS 85 2043 2355200
104838185 Nero F Jan. 19, 2021, 5:14 p.m. OK GNU C++17 TESTS 85 2074 2355200
104869161 jiangly F Jan. 20, 2021, 4:34 a.m. OK GNU C++17 (64) TESTS 85 31 0
104839244 Geothermal F Jan. 19, 2021, 5:20 p.m. OK GNU C++17 (64) TESTS 85 46 0
104842447 neal F Jan. 19, 2021, 5:46 p.m. OK GNU C++17 (64) TESTS 85 108 5529600
104849686 aryanc403 F Jan. 19, 2021, 7:27 p.m. OK GNU C++17 (64) TESTS 85 109 102400
104849712 aryanc403 F Jan. 19, 2021, 7:27 p.m. OK GNU C++17 (64) TESTS 85 109 102400
104854274 neal F Jan. 19, 2021, 9:06 p.m. OK GNU C++17 (64) TESTS 85 109 5529600
104841459 neal F Jan. 19, 2021, 5:37 p.m. OK GNU C++17 (64) TESTS 85 139 5529600
104841528 neal F Jan. 19, 2021, 5:37 p.m. OK GNU C++17 (64) TESTS 85 140 5529600
104840401 aryanc403 F Jan. 19, 2021, 5:28 p.m. OK GNU C++17 (64) TESTS 85 187 102400
104848150 aryanc403 F Jan. 19, 2021, 7 p.m. OK GNU C++17 (64) TESTS 85 202 102400

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