Codeforces Round 100

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
140 Codeforces Round 100 FINISHED False 7200 406133999 Jan. 4, 2012, 3 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 948 ) E New Year Garland PROGRAMMING combinatorics dp 2600

B"As Gerald, Alexander, Sergey and Gennady are already busy with the usual New Year chores, Edward hastily decorates the New Year Tree. And any decent New Year Tree must be decorated with a good garland. Edward has lamps of m colors and he wants to make a garland from them. That garland should represent a sequence whose length equals L. Edward's tree is n layers high and Edward plans to hang the garland so as to decorate the first layer with the first l1 lamps, the second layer -- with the next l2 lamps and so on. The last n-th layer should be decorated with the last ln lamps, Edward adores all sorts of math puzzles, so he suddenly wondered: how many different ways to assemble the garland are there given that the both following two conditions are met: Help Edward find the answer to this nagging problem or else he won't manage to decorate the Tree by New Year. You may consider that Edward has an unlimited number of lamps of each of m colors and it is not obligatory to use all m colors. The garlands are considered different if they differ in at least one position when represented as sequences. Calculate the answer modulo p. The first line contains three integers n, m and p (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n, xe2 x80 x89m xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89106, 2 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89p xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109) which are the number of the tree's layers, the number of the lamps' colors and module correspondingly. The next line contains n integers li (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89li xe2 x80 x89 xe2 x89 xa4 xe2 x80 x895000, ). Print the only integer -- the number of garlands modulo p. In the first sample the following variants are possible: 121|1|12, 121|1|21, 121|2|12, 121|2|21, 212|1|12, 212|1|21, 212|2|12, 212|2|21. In the second sample the following variants are possible: 12|13, 12|23, 12|31, 12|32 and so on. "...

Tutorials

Codeforces Round #100: problem analysis

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
1005484 tourist E Jan. 4, 2012, 4:12 p.m. OK FPC TESTS 33 2020 127385600 2600
1013243 coolinging E Jan. 5, 2012, 3:24 p.m. OK FPC TESTS 33 2390 218931200 2600
1012794 zanoes E Jan. 5, 2012, 12:10 p.m. OK FPC TESTS 33 2450 210432000 2600
1293287 object022 E March 6, 2012, 8 a.m. OK FPC TESTS 33 2630 233676800 2600
1313926 sillycross E March 9, 2012, 12:15 a.m. OK FPC TESTS 33 2700 101683200 2600
1042205 waterkid E Jan. 13, 2012, 3:54 a.m. OK FPC TESTS 33 2970 205619200 2600
1015413 mage E Jan. 6, 2012, 7:22 p.m. OK GNU C TESTS 33 1190 206028800 2600
1010467 eduardische E Jan. 4, 2012, 6:42 p.m. OK GNU C TESTS 33 1910 113868800 2600
1010451 eduardische E Jan. 4, 2012, 6:40 p.m. OK GNU C TESTS 33 2110 113868800 2600
19722789 Andy_21 E Aug. 8, 2016, 7:40 a.m. OK GNU C TESTS 33 2184 110387200 2600
1383597 moreD E March 21, 2012, 8:37 a.m. OK GNU C++ TESTS 33 920 106086400 2600
3672055 dnk E May 5, 2013, 9:34 a.m. OK GNU C++ TESTS 33 937 104345600 2600
1122040 grsiy E Jan. 28, 2012, 5:13 a.m. OK GNU C++ TESTS 33 950 150118400 2600
1574470 point3251 E April 19, 2012, 3:58 a.m. OK GNU C++ TESTS 33 970 206745600 2600
1383589 moreD E March 21, 2012, 8:34 a.m. OK GNU C++ TESTS 33 970 206745600 2600
2384459 Nomad E Oct. 18, 2012, 3:15 p.m. OK GNU C++ TESTS 33 1000 104550400 2600
40992002 ReaLNero1 E July 31, 2018, 1 a.m. OK GNU C++ TESTS 33 1028 104550400 2600
14639243 u33how E Dec. 3, 2015, 7:41 p.m. OK GNU C++ TESTS 33 1058 104345600 2600
10993152 1150076053 E May 4, 2015, 6:54 a.m. OK GNU C++ TESTS 33 1060 104448000 2600
1075226 tomekkulczynski E Jan. 18, 2012, 11:29 a.m. OK GNU C++ TESTS 33 1080 118784000 2600
1045908 Archon.JK E Jan. 15, 2012, 1:20 a.m. OK GNU C++0x TESTS 33 1140 105779200 2600
7149149 FancyCoder E July 18, 2014, 1:05 p.m. OK GNU C++0x TESTS 33 1340 205414400 2600
7680995 HandIeNeeded E Sept. 4, 2014, 10:41 a.m. OK GNU C++0x TESTS 33 1590 205004800 2600
9713394 hzwer E Feb. 4, 2015, 11:59 a.m. OK GNU C++0x TESTS 33 1808 216985600 2600
9704489 737363395 E Feb. 3, 2015, 5:31 p.m. OK GNU C++0x TESTS 33 2246 200396800 2600
1045898 Archon.JK E Jan. 15, 2012, 1:05 a.m. OK GNU C++0x TESTS 33 3920 101683200 2600
53946168 Miracle_2001 E May 10, 2019, 6:48 a.m. OK GNU C++11 TESTS 33 778 108544000 2600
31477650 zhangzy E Oct. 18, 2017, 11:15 a.m. OK GNU C++11 TESTS 33 840 104652800 2600
48057832 cxcxccx E Jan. 7, 2019, 1:22 p.m. OK GNU C++11 TESTS 33 842 104448000 2600
52252598 comld E April 3, 2019, 2:21 a.m. OK GNU C++11 TESTS 33 904 120627200 2600
62174680 cyf32768 E Oct. 9, 2019, 3:24 a.m. OK GNU C++11 TESTS 33 996 192512000 2600
44769200 Elegia E Oct. 24, 2018, 11:33 a.m. OK GNU C++11 TESTS 33 998 104550400 2600
35839115 ______n______ E March 2, 2018, 1:46 p.m. OK GNU C++11 TESTS 33 998 106188800 2600
35839110 ______u______ E March 2, 2018, 1:46 p.m. OK GNU C++11 TESTS 33 998 106188800 2600
35839012 _____k_____ E March 2, 2018, 1:44 p.m. OK GNU C++11 TESTS 33 998 106188800 2600
35839010 _____i_____ E March 2, 2018, 1:44 p.m. OK GNU C++11 TESTS 33 998 106188800 2600
25267268 ntopia E March 5, 2017, 4:09 p.m. OK GNU C++14 TESTS 33 1184 106291200 2600
68853169 MakeSPGreatAgain E Jan. 15, 2020, 9:44 a.m. OK GNU C++14 TESTS 33 1248 104652800 2600
69845969 yan-zp E Jan. 30, 2020, 2:21 p.m. OK GNU C++14 TESTS 33 1276 101171200 2600
33880902 DraZxlNDdt E Jan. 3, 2018, 8:43 a.m. OK GNU C++14 TESTS 33 1310 206745600 2600
28598103 LetItGo E July 16, 2017, 2:17 p.m. OK GNU C++14 TESTS 33 1310 206745600 2600
50871185 bestFy E March 6, 2019, 1:51 a.m. OK GNU C++14 TESTS 33 1340 108339200 2600
68839923 RyoPham E Jan. 15, 2020, 5:22 a.m. OK GNU C++14 TESTS 33 1340 176844800 2600
33636944 Toxel E Dec. 26, 2017, 5:48 a.m. OK GNU C++14 TESTS 33 1370 207155200 2600
50870212 qiqi20021026 E March 6, 2019, 12:38 a.m. OK GNU C++14 TESTS 33 1370 224972800 2600
23670833 Ali.Pi E Jan. 9, 2017, 8:39 p.m. OK GNU C++14 TESTS 33 1404 102195200 2600
68850544 vipghn2003 E Jan. 15, 2020, 8:49 a.m. OK GNU C++17 TESTS 33 1028 104550400 2600
62050710 hjk1030 E Oct. 7, 2019, 9:20 a.m. OK GNU C++17 TESTS 33 1060 104652800 2600
69626275 user060804 E Jan. 27, 2020, 3:54 p.m. OK GNU C++17 TESTS 33 1060 208998400 2600
68851301 HoaPhat1 E Jan. 15, 2020, 9:02 a.m. OK GNU C++17 TESTS 33 1122 104550400 2600
49985103 Mandir_Wahi_Banayenge E Feb. 16, 2019, 10:12 a.m. OK GNU C++17 TESTS 33 1184 201216000 2600
68217337 Gnoud__ E Jan. 5, 2020, 1:18 a.m. OK GNU C++17 TESTS 33 1184 217395200 2600
48664510 vjudge4 E Jan. 21, 2019, 7:29 a.m. OK GNU C++17 TESTS 33 1340 205414400 2600
48661329 Asagami E Jan. 21, 2019, 6:09 a.m. OK GNU C++17 TESTS 33 1402 205414400 2600
42327574 ruo E Sept. 1, 2018, 7:13 a.m. OK GNU C++17 TESTS 33 1528 201216000 2600
47287237 vjudge2 E Dec. 20, 2018, 6:58 a.m. OK GNU C++17 TESTS 33 1558 108748800 2600
1027872 uwi E Jan. 10, 2012, 9:53 a.m. OK Java 6 TESTS 33 1360 195481600 2600
1009015 Petr E Jan. 4, 2012, 4:57 p.m. OK Java 6 TESTS 33 1410 226406400 2600
1007213 cerealguy E Jan. 4, 2012, 4:34 p.m. OK Java 6 TESTS 33 1560 101478400 2600
4505018 uwi E Sept. 19, 2013, 4:40 p.m. OK Java 6 TESTS 33 1590 152268800 2600
1007254 Egor E Jan. 4, 2012, 4:35 p.m. OK Java 6 TESTS 33 1660 189235200 2600
1012628 OgieKako E Jan. 5, 2012, 11:03 a.m. OK Java 6 TESTS 33 2110 189132800 2600
4505003 uwi E Sept. 19, 2013, 4:38 p.m. OK Java 6 TESTS 33 2120 150835200 2600
1012238 YuukaKazami E Jan. 5, 2012, 7:53 a.m. OK Java 6 TESTS 33 2310 168652800 2600
1014319 Di735 E Jan. 6, 2012, 6:43 a.m. OK Java 6 TESTS 33 2520 167321600 2600
4504976 uwi E Sept. 19, 2013, 4:35 p.m. OK Java 6 TESTS 33 2526 152268800 2600
2299870 trunghieu11 E Oct. 4, 2012, 3:46 p.m. OK Java 7 TESTS 33 1656 143974400 2600
4503194 hama-du E Sept. 19, 2013, 11:49 a.m. OK Java 7 TESTS 33 3244 150937600 2600
1528133 Fefer_Ivan E April 13, 2012, 11:51 a.m. OK MS C++ TESTS 33 1420 206745600 2600
1010895 Fdg E Jan. 4, 2012, 8:07 p.m. OK MS C++ TESTS 33 1590 129843200 2600
1010901 Fdg E Jan. 4, 2012, 8:08 p.m. OK MS C++ TESTS 33 1630 105676800 2600
52764550 vjudge4 E April 15, 2019, 1:29 a.m. OK MS C++ TESTS 33 1652 104448000 2600
1010106 Shef E Jan. 4, 2012, 6:14 p.m. OK MS C++ TESTS 33 1700 215756800 2600
1009722 Kenny_HORROR E Jan. 4, 2012, 5:48 p.m. OK MS C++ TESTS 33 2030 206336000 2600
7491522 dkflfkdeh E Aug. 17, 2014, 10:09 a.m. OK MS C++ TESTS 33 2088 205004800 2600
1443702 Sigmar E March 30, 2012, 2:19 p.m. OK MS C++ TESTS 33 2220 206643200 2600
20652191 siscon_org E Sept. 16, 2016, 4:09 a.m. OK MS C++ TESTS 33 2244 222208000 2600
1014684 zjut_DD E Jan. 6, 2012, 11:04 a.m. OK MS C++ TESTS 33 2970 160460800 2600

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