Codeforces Global Round 19

Solutions are presented as using the least memory and the fastest execution time. It also takes the top 10 most recent solutions from each language. If you want to limit to a specific index, click the "Solved" button and go to that problem.

ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1637 Codeforces Global Round 19 FINISHED False 9000 92589863 Feb. 12, 2022, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 14936 ) B MEX and Array PROGRAMMING brute force dp greedy math

B"Let there be an array b_1, b_2, ldots, b_k . Let there be a partition of this array into segments [l_1; r_1], [l_2; r_2], ldots, [l_c; r_c] , where l_1 = 1 , r_c = k , and for any 2 <= q i <= q c holds that r_{i-1} + 1 = l_i . In other words, each element of the array belongs to exactly one segment. Let's define the cost of a partition as c + sum_{i = 1}^{c} operatorname{mex}( {b_{l_i}, b_{l_i + 1}, ldots, b_{r_i} }), where operatorname{mex} of a set of numbers S is the smallest non-negative integer that does not occur in the set S . In other words, the cost of a partition is the number of segments plus the sum of MEX over all segments. Let's define the value of an array b_1, b_2, ldots, b_k as the maximum possible cost over all partitions of this array. You are given an array a of size n . Find the sum of values of all its subsegments. An array x is a subsegment of an array y if x can be obtained from y by deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements from the end. The input contains several test cases. The first line contains one integer t ( 1 <= q t <= q 30 ) -- the number of test cases. The first line for each test case contains one integer n ( 1 <= q n <= q 100 ) -- the length of the array. The second line contains a sequence of integers a_1, a_2, ldots, a_n ( 0 <= q a_i <= q 10^9 ) -- the array elements. It is guaranteed that the sum of the values n over all test cases does not exceed 100 . For each test case print a single integer -- the answer to the problem. In the second test case: The sum of values over all subsegments equals to 4 + 3 + 1 + 3 + 2 + 1 = 14 . "...

Tutorials

Tutorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
146189288 hnust_linuo B Feb. 13, 2022, 3:37 a.m. OK GNU C11 TESTS 14 15 0
146191230 MallaSailesh B Feb. 13, 2022, 4:12 a.m. OK GNU C11 TESTS 14 15 0
146183848 Vinayak-14 B Feb. 13, 2022, 1:26 a.m. OK GNU C++14 TESTS 14 0 0
146183647 Zhengenxi B Feb. 13, 2022, 1:22 a.m. OK GNU C++14 TESTS 14 0 0
146183610 arunsingh1771999 B Feb. 13, 2022, 1:20 a.m. OK GNU C++14 TESTS 14 0 0
146181254 leexzq B Feb. 13, 2022, 12:12 a.m. OK GNU C++14 TESTS 14 0 0
146177520 Explode_Legacy B Feb. 12, 2022, 10:24 p.m. OK GNU C++14 TESTS 14 0 0
146170416 D-code B Feb. 12, 2022, 8:12 p.m. OK GNU C++14 TESTS 14 0 0
146195908 Vivekch_20 B Feb. 13, 2022, 5:25 a.m. OK GNU C++14 TESTS 14 0 0
146188368 shy_but_not_shy B Feb. 13, 2022, 3:18 a.m. OK GNU C++14 TESTS 14 0 0
146195986 ddshotaman B Feb. 13, 2022, 5:26 a.m. OK GNU C++14 TESTS 14 0 0
146193895 patidarujjawal B Feb. 13, 2022, 4:57 a.m. OK GNU C++14 TESTS 14 0 102400
146196810 bansal_ritik B Feb. 13, 2022, 5:36 a.m. OK GNU C++17 TESTS 14 0 0
146194269 Siddharth_Ar B Feb. 13, 2022, 5:02 a.m. OK GNU C++17 TESTS 14 0 0
146191552 mostafa_ayman B Feb. 13, 2022, 4:18 a.m. OK GNU C++17 TESTS 14 0 0
146189209 nibirjoydhar B Feb. 13, 2022, 3:35 a.m. OK GNU C++17 TESTS 14 0 0
146197176 coder_679 B Feb. 13, 2022, 5:40 a.m. OK GNU C++17 TESTS 14 0 0
146188783 Akshay_Nallagari B Feb. 13, 2022, 3:27 a.m. OK GNU C++17 TESTS 14 0 0
146187713 abhinavreddyboddu B Feb. 13, 2022, 3:03 a.m. OK GNU C++17 TESTS 14 0 0
146187300 abhinavreddyboddu B Feb. 13, 2022, 2:53 a.m. OK GNU C++17 TESTS 14 0 0
146187068 yexisu B Feb. 13, 2022, 2:48 a.m. OK GNU C++17 TESTS 14 0 0
146189158 Abid_Saharia B Feb. 13, 2022, 3:34 a.m. OK GNU C++17 TESTS 14 0 0
146167919 kevinyang B Feb. 12, 2022, 7:39 p.m. OK GNU C++17 (64) TESTS 14 0 0
146198068 Ryuk10 B Feb. 13, 2022, 5:51 a.m. OK GNU C++17 (64) TESTS 14 0 0
146193592 bkifhr8 B Feb. 13, 2022, 4:52 a.m. OK GNU C++17 (64) TESTS 14 0 0
146191854 luogu_bot2 B Feb. 13, 2022, 4:24 a.m. OK GNU C++17 (64) TESTS 14 0 0
146190119 wsyhb B Feb. 13, 2022, 3:52 a.m. OK GNU C++17 (64) TESTS 14 0 0
146187129 HenryG B Feb. 13, 2022, 2:49 a.m. OK GNU C++17 (64) TESTS 14 0 0
146181530 froggyzhang B Feb. 13, 2022, 12:20 a.m. OK GNU C++17 (64) TESTS 14 0 0
146177286 rgnerdplayer B Feb. 12, 2022, 10:18 p.m. OK GNU C++17 (64) TESTS 14 0 0
146176183 zagvozdkin B Feb. 12, 2022, 9:51 p.m. OK GNU C++17 (64) TESTS 14 0 0
146170767 ravager_23 B Feb. 12, 2022, 8:18 p.m. OK GNU C++17 (64) TESTS 14 0 0
146198951 kaam_karo_faad_do B Feb. 13, 2022, 6:01 a.m. OK GNU C++20 (64) TESTS 14 0 0
146197648 JuLoSpace B Feb. 13, 2022, 5:46 a.m. OK GNU C++20 (64) TESTS 14 0 0
146196223 humble_fool46 B Feb. 13, 2022, 5:29 a.m. OK GNU C++20 (64) TESTS 14 0 0
146194963 imtiyazrasool92 B Feb. 13, 2022, 5:12 a.m. OK GNU C++20 (64) TESTS 14 0 0
146191782 Suvro1 B Feb. 13, 2022, 4:22 a.m. OK GNU C++20 (64) TESTS 14 0 0
146191627 Bitmaskman B Feb. 13, 2022, 4:20 a.m. OK GNU C++20 (64) TESTS 14 0 0
146189580 Zerologic_Infinity B Feb. 13, 2022, 3:43 a.m. OK GNU C++20 (64) TESTS 14 0 0
146187505 Dog_food_is_me B Feb. 13, 2022, 2:58 a.m. OK GNU C++20 (64) TESTS 14 0 0
146186084 ADguy-CN B Feb. 13, 2022, 2:23 a.m. OK GNU C++20 (64) TESTS 14 0 0
146199205 KING-STAR B Feb. 13, 2022, 6:03 a.m. OK GNU C++20 (64) TESTS 14 0 0
146176345 Toinfinity B Feb. 12, 2022, 9:55 p.m. OK Java 11 TESTS 14 155 0
146188078 mrudul4935 B Feb. 13, 2022, 3:11 a.m. OK Java 11 TESTS 14 155 0
146186334 0archlinux0 B Feb. 13, 2022, 2:29 a.m. OK Java 11 TESTS 14 155 0
146169241 dhruvil_01 B Feb. 12, 2022, 7:56 p.m. OK Java 11 TESTS 14 156 0
146189965 yash13203 B Feb. 13, 2022, 3:50 a.m. OK Java 11 TESTS 14 156 0
146187745 aditya2024 B Feb. 13, 2022, 3:04 a.m. OK Java 11 TESTS 14 156 0
146174464 pras7946 B Feb. 12, 2022, 9:19 p.m. OK Java 11 TESTS 14 156 0
146192927 nirala69 B Feb. 13, 2022, 4:41 a.m. OK Java 11 TESTS 14 171 0
146199151 dhruvil8804 B Feb. 13, 2022, 6:03 a.m. OK Java 11 TESTS 14 171 0
146194069 i2w2411 B Feb. 13, 2022, 5 a.m. OK Java 11 TESTS 14 171 0
146164999 dogranmol B Feb. 12, 2022, 7:04 p.m. OK Java 8 TESTS 14 77 0
146175312 Abdallah_Ragab00 B Feb. 12, 2022, 9:34 p.m. OK Java 8 TESTS 14 77 0
146161860 gssakash B Feb. 12, 2022, 6:32 p.m. OK Java 8 TESTS 14 92 0
146150420 ifajka B Feb. 12, 2022, 4:57 p.m. OK Java 8 TESTS 14 92 0
146163466 ved20 B Feb. 12, 2022, 6:47 p.m. OK Java 8 TESTS 14 93 0
146152107 kartikpapney B Feb. 12, 2022, 5:01 p.m. OK Java 8 TESTS 14 93 0
146159225 Mohamed308 B Feb. 12, 2022, 6:11 p.m. OK Java 8 TESTS 14 93 0
146195939 govindrajput B Feb. 13, 2022, 5:25 a.m. OK Java 8 TESTS 14 93 0
146170477 ushikawa B Feb. 12, 2022, 8:13 p.m. OK Java 8 TESTS 14 93 0
146168409 DEMO23 B Feb. 12, 2022, 7:45 p.m. OK Java 8 TESTS 14 93 0
146152976 sankalpbhushan281999 B Feb. 12, 2022, 5:03 p.m. OK Kotlin 1.4 TESTS 14 109 0
146173993 PER B Feb. 12, 2022, 9:10 p.m. OK Kotlin 1.5 TESTS 14 187 0
146181676 mo3az01 B Feb. 13, 2022, 12:25 a.m. OK Kotlin 1.5 TESTS 14 202 204800
146162268 abdelrahman_rashed B Feb. 12, 2022, 6:36 p.m. OK MS C++ 2017 TESTS 14 15 0
146193330 Tdyx B Feb. 13, 2022, 4:47 a.m. OK .NET Core C# TESTS 14 77 102400
146178543 OLOGY B Feb. 12, 2022, 10:52 p.m. OK PyPy 2 TESTS 14 46 0
146167977 fme B Feb. 12, 2022, 7:40 p.m. OK PyPy 2 TESTS 14 93 1126400
146157405 1_2_3_4_5_9 B Feb. 12, 2022, 6:01 p.m. OK PyPy 2 TESTS 14 108 307200
146182078 FlakeLCR B Feb. 13, 2022, 12:37 a.m. OK PyPy 3 TESTS 14 77 0
146169573 noobsatish B Feb. 12, 2022, 8 p.m. OK PyPy 3 TESTS 14 77 0
146169474 noobsatish B Feb. 12, 2022, 7:59 p.m. OK PyPy 3 TESTS 14 77 0
146147116 vikasreddy270 B Feb. 12, 2022, 4:48 p.m. OK PyPy 3 TESTS 14 77 2662400
146174781 Hqxor B Feb. 12, 2022, 9:24 p.m. OK PyPy 3 TESTS 14 77 2764800
146190550 NirmalScaria1 B Feb. 13, 2022, 4 a.m. OK PyPy 3 TESTS 14 78 1331200
146173443 toam B Feb. 12, 2022, 9:01 p.m. OK PyPy 3 TESTS 14 78 1945600
146194319 pufanyi B Feb. 13, 2022, 5:03 a.m. OK PyPy 3 TESTS 14 92 0
146197070 MohammadsadraSedighin B Feb. 13, 2022, 5:39 a.m. OK PyPy 3 TESTS 14 92 1331200
146191247 Youarenotgood B Feb. 13, 2022, 4:12 a.m. OK PyPy 3 TESTS 14 93 1433600
146166273 Hdk2127 B Feb. 12, 2022, 7:19 p.m. OK PyPy 3-64 TESTS 14 61 0
146188705 cofonewbie B Feb. 13, 2022, 3:25 a.m. OK PyPy 3-64 TESTS 14 62 2048000
146188696 likaiwen923 B Feb. 13, 2022, 3:25 a.m. OK PyPy 3-64 TESTS 14 77 0
146147420 tl3097 B Feb. 12, 2022, 4:49 p.m. OK PyPy 3-64 TESTS 14 77 0
146192982 rutz12 B Feb. 13, 2022, 4:42 a.m. OK PyPy 3-64 TESTS 14 78 2150400
146182976 titan23 B Feb. 13, 2022, 1:02 a.m. OK PyPy 3-64 TESTS 14 78 2560000
146160380 krishnam_omar B Feb. 12, 2022, 6:19 p.m. OK PyPy 3-64 TESTS 14 92 512000
146160499 KabirIvan B Feb. 12, 2022, 6:20 p.m. OK PyPy 3-64 TESTS 14 93 2048000
146183099 titan23 B Feb. 13, 2022, 1:06 a.m. OK PyPy 3-64 TESTS 14 93 2150400
146149104 DeathIsAwe B Feb. 12, 2022, 4:54 p.m. OK PyPy 3-64 TESTS 14 93 2662400
146178583 OLOGY B Feb. 12, 2022, 10:53 p.m. OK Python 2 TESTS 14 31 0
146178547 OLOGY B Feb. 12, 2022, 10:52 p.m. OK Python 2 TESTS 14 31 0
146157195 OLOGY B Feb. 12, 2022, 6:01 p.m. OK Python 2 TESTS 14 31 0
146174399 shengyuchill B Feb. 12, 2022, 9:17 p.m. OK Python 3 TESTS 14 31 0
146151464 Goldeneye534 B Feb. 12, 2022, 4:59 p.m. OK Python 3 TESTS 14 31 0
146149254 s7ubham B Feb. 12, 2022, 4:54 p.m. OK Python 3 TESTS 14 31 0
146180636 nifty9 B Feb. 12, 2022, 11:55 p.m. OK Python 3 TESTS 14 46 0
146180604 nifty9 B Feb. 12, 2022, 11:54 p.m. OK Python 3 TESTS 14 46 0
146170179 THEarchitect B Feb. 12, 2022, 8:09 p.m. OK Python 3 TESTS 14 46 0
146165899 Tasia2001 B Feb. 12, 2022, 7:15 p.m. OK Python 3 TESTS 14 46 0
146152673 chitraketu B Feb. 12, 2022, 5:02 p.m. OK Python 3 TESTS 14 46 0
146151973 choko100 B Feb. 12, 2022, 5:01 p.m. OK Python 3 TESTS 14 46 0
146147688 wKai000 B Feb. 12, 2022, 4:50 p.m. OK Python 3 TESTS 14 46 102400
146158969 zhhhplus B Feb. 12, 2022, 6:09 p.m. OK Rust 2021 TESTS 14 15 0
146158361 Romal_Vekasi B Feb. 12, 2022, 6:06 p.m. OK Scala TESTS 14 482 102400

remove filters

Back to search problems