Educational Codeforces Round 11

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
660 Educational Codeforces Round 11 FINISHED False 7200 277484404 April 8, 2016, 3 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 4047 ) D Number of Parallelograms PROGRAMMING geometry 1900

B'You are given n points on a plane. All the points are distinct and no three of them lie on the same line. Find the number of parallelograms with the vertices at the given points. The first line of the input contains integer n (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n xe2 x80 x89 xe2 x89 xa4 xe2 x80 x892000) -- the number of points. Each of the next n lines contains two integers (xi, xe2 x80 x89yi) (0 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89xi, xe2 x80 x89yi xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109) -- the coordinates of the i-th point. Print the only integer c -- the number of parallelograms with the vertices at the given points. '...

Tutorials

Editorial of Educational Codeforces Round 11

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
17266282 ruban D April 10, 2016, 2:39 p.m. OK Delphi TESTS 72 1621 177766400 1900
17316823 gamo D April 14, 2016, 4 p.m. OK FPC TESTS 72 390 16076800 1900
17232752 ligerre D April 8, 2016, 3:14 p.m. OK FPC TESTS 72 561 33996800 1900
22204498 WalkingDeade D Nov. 14, 2016, 8:40 a.m. OK FPC TESTS 72 670 144281600 1900
17478954 dohonghuan D April 24, 2016, 11:18 a.m. OK FPC TESTS 72 826 130048000 1900
17237304 Krydom_Yuudachi D April 8, 2016, 4:02 p.m. OK FPC TESTS 72 1747 69939200 1900
17329395 s_p D April 15, 2016, 3:45 p.m. OK GNU C TESTS 72 405 198553600 1900
35770615 rainboy D Feb. 27, 2018, 5:28 p.m. OK GNU C TESTS 72 685 50176000 1900
35770489 rainboy D Feb. 27, 2018, 5:23 p.m. OK GNU C TESTS 72 748 50176000 1900
17329254 s_p D April 15, 2016, 3:36 p.m. OK GNU C TESTS 72 888 97689600 1900
18642241 SoiMae D June 22, 2016, 7:44 a.m. OK GNU C++ TESTS 72 186 32358400 1900
37635796 vjudge4 D April 26, 2018, 12:35 p.m. OK GNU C++ TESTS 72 187 19558400 1900
17334714 1512198 D April 16, 2016, 5:39 a.m. OK GNU C++ TESTS 72 187 32256000 1900
19918213 RNS_JKS D Aug. 17, 2016, 2:24 a.m. OK GNU C++ TESTS 72 187 34816000 1900
17251545 kmj1030aa D April 9, 2016, 11:08 a.m. OK GNU C++ TESTS 72 202 27340800 1900
17399136 vjudge3 D April 20, 2016, 12:23 p.m. OK GNU C++ TESTS 72 202 27443200 1900
19451661 Wuvin D July 28, 2016, 1:30 a.m. OK GNU C++ TESTS 72 202 32256000 1900
17304827 IHaveBeenBlueFor3Years D April 13, 2016, 4:19 p.m. OK GNU C++ TESTS 72 202 32256000 1900
18015640 vjudge4 D May 21, 2016, 8:40 a.m. OK GNU C++ TESTS 72 202 34304000 1900
17435584 vjudge1 D April 22, 2016, 1:53 p.m. OK GNU C++ TESTS 72 202 34304000 1900
17234886 meowoo D April 8, 2016, 3:33 p.m. OK GNU C++11 TESTS 72 171 18124800 1900
23257160 MladenP D Dec. 23, 2016, 7:05 p.m. OK GNU C++11 TESTS 72 171 27340800 1900
17545087 saichandu6 D April 27, 2016, 6:12 p.m. OK GNU C++11 TESTS 72 171 41676800 1900
17259792 DmitryDrozdov D April 10, 2016, 4:33 a.m. OK GNU C++11 TESTS 72 187 15974400 1900
28899948 mualanhlung017 D July 26, 2017, 9:23 a.m. OK GNU C++11 TESTS 72 187 27340800 1900
40984606 ReaLNero1 D July 30, 2018, 7:29 p.m. OK GNU C++11 TESTS 72 187 39628800 1900
17267299 FantasmanXander D April 10, 2016, 4:17 p.m. OK GNU C++11 TESTS 72 202 16076800 1900
17267292 kuroshitsuji D April 10, 2016, 4:16 p.m. OK GNU C++11 TESTS 72 202 16076800 1900
17235277 johnchen902 D April 8, 2016, 3:37 p.m. OK GNU C++11 TESTS 72 202 18124800 1900
17253947 magnickolas D April 9, 2016, 3:05 p.m. OK GNU C++11 TESTS 72 202 18227200 1900
41302370 grand_zeno bluishgreen kingcranky D Aug. 7, 2018, 11:04 a.m. OK GNU C++14 TESTS 72 171 25600000 1900
35964718 bijoy_00_ D March 5, 2018, 12:20 p.m. OK GNU C++14 TESTS 72 187 27750400 1900
21692839 Lena19 D Oct. 22, 2016, 7:44 p.m. OK GNU C++14 TESTS 72 202 15974400 1900
41822434 MBillah D Aug. 19, 2018, 10:17 a.m. OK GNU C++14 TESTS 72 202 25292800 1900
32144046 mechanic D Nov. 8, 2017, 6:07 p.m. OK GNU C++14 TESTS 72 202 25292800 1900
46549323 astro_lion D Dec. 3, 2018, 4:52 p.m. OK GNU C++14 TESTS 72 202 25804800 1900
36082189 Zlatan_05 D March 8, 2018, 9:13 p.m. OK GNU C++14 TESTS 72 202 27136000 1900
31563123 akt D Oct. 21, 2017, 9:46 a.m. OK GNU C++14 TESTS 72 202 27238400 1900
35554080 YouKn0wWho D Feb. 21, 2018, 4:34 p.m. OK GNU C++14 TESTS 72 202 27648000 1900
33442098 YouKn0wWho D Dec. 20, 2017, 12:22 a.m. OK GNU C++14 TESTS 72 202 27648000 1900
57779267 hector_ D July 26, 2019, 5:15 a.m. OK GNU C++17 TESTS 72 202 25292800 1900
54828306 mahdi.hasnat D May 30, 2019, 7:41 a.m. OK GNU C++17 TESTS 72 218 25292800 1900
68968611 CamBam D Jan. 17, 2020, 6:08 a.m. OK GNU C++17 TESTS 72 218 25804800 1900
63430148 Parutix D Oct. 26, 2019, 8:54 a.m. OK GNU C++17 TESTS 72 218 32051200 1900
63750027 UsruCE D Oct. 29, 2019, 7:54 p.m. OK GNU C++17 TESTS 72 233 32051200 1900
49199561 lerooo D Jan. 30, 2019, 11:56 a.m. OK GNU C++17 TESTS 72 248 54988800 1900
69279640 CoffeeCoder--o_0-- D Jan. 22, 2020, 5:10 a.m. OK GNU C++17 TESTS 72 265 25292800 1900
46009020 MrPink D Nov. 20, 2018, 6:51 p.m. OK GNU C++17 TESTS 72 265 50688000 1900
69074595 Lazy-Tortoise D Jan. 19, 2020, 2 a.m. OK GNU C++17 TESTS 72 280 50483200 1900
58340681 Anar D Aug. 5, 2019, 1:06 p.m. OK GNU C++17 TESTS 72 295 50995200 1900
17382412 mengsungwu D April 19, 2016, 1:02 a.m. OK Go TESTS 72 670 135987200 1900
19969771 pavel.rosputko D Aug. 19, 2016, 6:56 p.m. OK Haskell TESTS 72 2292 156364800 1900
69009066 PrincyJain D Jan. 18, 2020, 2:21 a.m. OK Java 11 TESTS 72 1122 49356800 1900
69008815 PrincyJain D Jan. 18, 2020, 2:10 a.m. OK Java 11 TESTS 72 1185 49356800 1900
68633403 Schrodinger2208 D Jan. 12, 2020, 4:30 a.m. OK Java 11 TESTS 72 1403 66560000 1900
17324294 petr11235 D April 15, 2016, 9:08 a.m. OK Java 7 TESTS 72 499 15462400 1900
17237860 fromWork D April 8, 2016, 4:09 p.m. OK Java 7 TESTS 72 764 71680000 1900
17963370 handsomecui D May 17, 2016, 8:54 a.m. OK Java 7 TESTS 72 1637 146739200 1900
17704262 mkirsche D May 4, 2016, 5:02 a.m. OK Java 7 TESTS 72 1715 216985600 1900
17247991 Azat_Yusupov D April 9, 2016, 5:08 a.m. OK Java 7 TESTS 72 2230 179404800 1900
17292493 Hepic_Antony_Skarlatos D April 12, 2016, 4:27 p.m. OK Java 7 TESTS 72 2324 184422400 1900
17421458 tuanalt D April 21, 2016, 3:12 p.m. OK Java 7 TESTS 72 2730 220876800 1900
17395950 buzaubakov.raman D April 20, 2016, 7:31 a.m. OK Java 7 TESTS 72 3244 300339200 1900
17531215 alibaba D April 27, 2016, 6:02 a.m. OK Java 7 TESTS 72 3572 291123200 1900
17611018 santjuan D May 1, 2016, 5:15 p.m. OK Java 7 TESTS 72 3993 300032000 1900
66417977 yaoct D Dec. 6, 2019, 5:48 p.m. OK Java 8 TESTS 72 389 14438400 1900
17434674 I_love_Malika D April 22, 2016, 12:47 p.m. OK Java 8 TESTS 72 436 36966400 1900
17233946 uwi D April 8, 2016, 3:24 p.m. OK Java 8 TESTS 72 436 37068800 1900
36068016 DeadInsideOnTest993 D March 8, 2018, 11 a.m. OK Java 8 TESTS 72 452 62361600 1900
22023537 pitfall D Nov. 3, 2016, 10:07 p.m. OK Java 8 TESTS 72 483 15052800 1900
49301794 Juniper D Feb. 1, 2019, 3:34 a.m. OK Java 8 TESTS 72 624 39731200 1900
49301719 Juniper D Feb. 1, 2019, 3:30 a.m. OK Java 8 TESTS 72 686 39731200 1900
23559461 hama-du D Jan. 5, 2017, 5:12 p.m. OK Java 8 TESTS 72 702 61542400 1900
28899660 mualanhlung017 D July 26, 2017, 9:09 a.m. OK Java 8 TESTS 72 904 86220800 1900
17274456 WonderMouse D April 11, 2016, 7:11 a.m. OK Java 8 TESTS 72 951 76492800 1900
17302465 AnatolyTolstobrov D April 13, 2016, 1:28 p.m. OK MS C# TESTS 72 467 129126400 1900
17242203 sundown D April 8, 2016, 5:41 p.m. OK MS C# TESTS 72 482 138649600 1900
17242426 RainGrid D April 8, 2016, 5:54 p.m. OK MS C# TESTS 72 1107 64000000 1900
17237436 og.kostya D April 8, 2016, 4:03 p.m. OK MS C# TESTS 72 1340 62361600 1900
17277597 DigitalArtistKz D April 11, 2016, 12:29 p.m. OK MS C# TESTS 72 1465 79769600 1900
17276888 Aidos D April 11, 2016, 11:38 a.m. OK MS C# TESTS 72 1512 55705600 1900
17234731 azukun D April 8, 2016, 3:32 p.m. OK MS C# TESTS 72 2324 235929600 1900
25785079 balalaika D March 25, 2017, 12:04 a.m. OK MS C# TESTS 72 3992 79155200 1900
25785115 balalaika D March 25, 2017, 12:10 a.m. OK MS C# TESTS 72 3993 79155200 1900
17382388 vjudge3 D April 19, 2016, 12:55 a.m. OK MS C++ TESTS 72 218 34304000 1900
28654358 vjudge4 D July 18, 2017, 4:08 a.m. OK MS C++ TESTS 72 218 34406400 1900
19359636 Ca-tharsis D July 23, 2016, 8:03 a.m. OK MS C++ TESTS 72 280 32051200 1900
19359800 Ca-tharsis D July 23, 2016, 8:12 a.m. OK MS C++ TESTS 72 312 32153600 1900
17238812 Leibniz_Zhang D April 8, 2016, 4:22 p.m. OK MS C++ TESTS 72 358 18432000 1900
17275763 luckystars D April 11, 2016, 9:58 a.m. OK MS C++ TESTS 72 390 32153600 1900
31006498 LossABike D Oct. 5, 2017, 3:19 a.m. OK MS C++ TESTS 72 390 32256000 1900
17264597 SniXosha D April 10, 2016, 12:18 p.m. OK MS C++ TESTS 72 405 16076800 1900
28795516 vjudge4 D July 23, 2017, 8:10 a.m. OK MS C++ TESTS 72 405 66560000 1900
28795438 vjudge1 D July 23, 2017, 8:06 a.m. OK MS C++ TESTS 72 420 34201600 1900
68567606 YZ98 D Jan. 10, 2020, 10:47 p.m. OK MS C++ 2017 TESTS 72 296 32665600 1900
60462826 siwei D Sept. 12, 2019, 10:01 p.m. OK MS C++ 2017 TESTS 72 1746 161996800 1900
55088243 h.mokdad D June 4, 2019, 1:25 p.m. OK MS C++ 2017 TESTS 72 2277 96358400 1900
69154338 Manabat D Jan. 19, 2020, 6:48 p.m. OK MS C++ 2017 TESTS 72 2495 96358400 1900
69975089 ariana.villegas D Feb. 1, 2020, 2:46 p.m. OK MS C++ 2017 TESTS 72 2838 80281600 1900
69976990 ariana.villegas D Feb. 1, 2020, 3:15 p.m. OK MS C++ 2017 TESTS 72 2947 96358400 1900
69977074 vjudge2 D Feb. 1, 2020, 3:16 p.m. OK MS C++ 2017 TESTS 72 2963 96665600 1900
17234998 alexey.shchepin D April 8, 2016, 3:34 p.m. OK Ocaml TESTS 72 3057 138854400 1900
17297575 kliner D April 13, 2016, 5:03 a.m. OK PyPy 2 TESTS 72 1309 222617600 1900
18577673 justforlaugh D June 18, 2016, 11:14 a.m. OK PyPy 2 TESTS 72 1310 220876800 1900
17683823 tastymath75025 D May 2, 2016, 2:31 a.m. OK PyPy 2 TESTS 72 1340 229171200 1900
19229440 Yash_ D July 19, 2016, 10:16 a.m. OK PyPy 2 TESTS 72 1481 179302400 1900
17256488 dpforest D April 9, 2016, 7:18 p.m. OK PyPy 2 TESTS 72 1668 228556800 1900
18168840 mplaton D May 31, 2016, 12:58 p.m. OK PyPy 2 TESTS 72 3978 229376000 1900
62454101 kgmkr00001 D Oct. 13, 2019, 5:41 a.m. OK PyPy 3 TESTS 72 1528 164352000 1900
35896489 Ferume D March 3, 2018, 5:17 p.m. OK PyPy 3 TESTS 72 1544 149196800 1900
65551271 Sevlll D Nov. 22, 2019, 7:03 p.m. OK PyPy 3 TESTS 72 1778 179814400 1900
56019221 scambret D June 25, 2019, 1:20 a.m. OK PyPy 3 TESTS 72 2417 175411200 1900
68960695 Toffer D Jan. 17, 2020, 12:27 a.m. OK PyPy 3 TESTS 72 2651 249651200 1900
22470062 Vosatorp D Nov. 24, 2016, 3:18 p.m. OK PyPy 3 TESTS 72 2667 155955200 1900
22470019 Vosatorp D Nov. 24, 2016, 3:16 p.m. OK PyPy 3 TESTS 72 3337 155955200 1900
17238346 cugel D April 8, 2016, 4:16 p.m. OK PyPy 3 TESTS 72 3743 145612800 1900
17313488 SerVasilich D April 14, 2016, 11:38 a.m. OK PyPy 3 TESTS 72 3743 156160000 1900
17237986 nwi D April 8, 2016, 4:11 p.m. OK Python 2 TESTS 72 2448 188211200 1900
17359791 orailly D April 17, 2016, 7:58 a.m. OK Python 2 TESTS 72 2698 196198400 1900
36660354 laoliumang D March 27, 2018, 7:08 a.m. OK Python 2 TESTS 72 3244 189644800 1900
64614451 wuhuang1 D Nov. 10, 2019, 3:55 a.m. OK Python 3 TESTS 72 2527 229683200 1900
52313186 somix D April 4, 2019, 3:43 p.m. OK Python 3 TESTS 72 2527 229785600 1900
31703169 yugle7 D Oct. 25, 2017, 8:43 a.m. OK Python 3 TESTS 72 2714 229376000 1900
69077158 fubbler D Jan. 19, 2020, 4:11 a.m. OK Python 3 TESTS 72 2792 197017600 1900
35888252 ______M______ D March 3, 2018, 2:18 p.m. OK Python 3 TESTS 72 2839 235008000 1900
53081618 codershuvo D April 21, 2019, 6:51 a.m. OK Python 3 TESTS 72 3120 245760000 1900
17359721 orailly D April 17, 2016, 7:53 a.m. OK Python 3 TESTS 72 3228 201728000 1900
49389673 amirah D Feb. 3, 2019, 9:05 a.m. OK Python 3 TESTS 72 3306 213401600 1900
17381802 name_no D April 18, 2016, 10:18 p.m. OK Python 3 TESTS 72 3369 201420800 1900
17267837 ChemJeff D April 10, 2016, 4:58 p.m. OK Python 3 TESTS 72 3572 197120000 1900
17280267 reldan D April 11, 2016, 3:50 p.m. OK Scala TESTS 72 3806 215040000 1900

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