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ContestId |
Name |
Phase |
Frozen |
Duration (Seconds) |
Relative Time |
Start Time |
---|---|---|---|---|---|---|
1304 | Codeforces Round 620 (Div. 2) | FINISHED | False | 7200 | 150051299 | Feb. 15, 2020, 1:05 p.m. |
Solved$ |
Index |
Name |
Type |
Tags |
Community Tag |
Rating |
---|---|---|---|---|---|---|
( 5299 ) | E | 1-Trees and Queries | PROGRAMMING | data structures dfs and similar shortest paths trees | 2000 |
B'Gildong was hiking a mountain, walking by millions of trees. Inspired by them, he suddenly came up with an interesting idea for trees in data structures: What if we add another edge in a tree? Then he found that such tree-like graphs are called 1-trees. Since Gildong was bored of solving too many tree problems, he wanted to see if similar techniques in trees can be used in 1-trees as well. Instead of solving it by himself, he 's going to test you by providing queries on 1-trees. First, he 'll provide you a tree (not 1-tree) with n vertices, then he will ask you q queries. Each query contains 5 integers: x , y , a , b , and k . This means you 're asked to determine if there exists a path from vertex a to b that contains exactly k edges after adding a bidirectional edge between vertices x and y . A path can contain the same vertices and same edges multiple times. All queries are independent of each other; i.e. the added edge in a query is removed in the next query. The first line contains an integer n ( 3 <= n <= 10^5 ), the number of vertices of the tree. Next n-1 lines contain two integers u and v ( 1 <= u,v <= n , u ne v ) each, which means there is an edge between vertex u and v . All edges are bidirectional and distinct. Next line contains an integer q ( 1 <= q <= 10^5 ), the number of queries Gildong wants to ask. Next q lines contain five integers x , y , a , b , and k each ( 1 <= x,y,a,b <= n , x ne y , 1 <= k <= 10^9 ) xe2 x80 x93 the integers explained in the description. It is guaranteed that the edge between x and y does not exist in the original tree. For each query, print "YES" if there exists a path that contains exactly k edges from vertex a to b after adding an edge between vertices x and y . Otherwise, print "NO". You can prin'... |
Codeforces Round #620 (Div. 2) Editorial |
Submission Id |
Author(s) |
Index |
Submitted |
Verdict |
Language |
Test Set |
Tests Passed |
Time taken (ms) |
Memory Consumed (bytes) |
Tags |
Rating |
---|---|---|---|---|---|---|---|---|---|---|---|
71614316 | JWoong149 | E | Feb. 22, 2020, 1:31 p.m. | OK | Clang++17 Diagnostics | TESTS | 94 | 3587 | 70860800 | 2000 | |
71614200 | JWoong149 | E | Feb. 22, 2020, 1:29 p.m. | OK | Clang++17 Diagnostics | TESTS | 94 | 3650 | 70860800 | 2000 | |
71613737 | JWoong149 | E | Feb. 22, 2020, 1:21 p.m. | OK | Clang++17 Diagnostics | TESTS | 94 | 3821 | 54886400 | 2000 | |
71162865 | iica | E | Feb. 15, 2020, 2:53 p.m. | OK | D | TESTS | 94 | 1606 | 39731200 | 2000 | |
71198708 | LucasQi | E | Feb. 16, 2020, 5:40 a.m. | OK | GNU C++11 | TESTS | 94 | 93 | 6963200 | 2000 | |
71256936 | shuashuawan | E | Feb. 17, 2020, 5:08 a.m. | OK | GNU C++11 | TESTS | 94 | 93 | 7168000 | 2000 | |
71206658 | Frame233 | E | Feb. 16, 2020, 7:57 a.m. | OK | GNU C++11 | TESTS | 94 | 93 | 7168000 | 2000 | |
71195532 | YJJ_Konnyaku | E | Feb. 16, 2020, 4:28 a.m. | OK | GNU C++11 | TESTS | 94 | 93 | 7168000 | 2000 | |
71147582 | wangdyakioi | E | Feb. 15, 2020, 1:57 p.m. | OK | GNU C++11 | TESTS | 94 | 93 | 8294400 | 2000 | |
71202483 | wasa855 | E | Feb. 16, 2020, 6:48 a.m. | OK | GNU C++11 | TESTS | 94 | 93 | 8806400 | 2000 | |
71225230 | _Backl1ght | E | Feb. 16, 2020, 1:32 p.m. | OK | GNU C++11 | TESTS | 94 | 93 | 8908800 | 2000 | |
71197411 | froggyzhang | E | Feb. 16, 2020, 5:14 a.m. | OK | GNU C++11 | TESTS | 94 | 93 | 14438400 | 2000 | |
71153804 | Froggygua | E | Feb. 15, 2020, 2:19 p.m. | OK | GNU C++11 | TESTS | 94 | 93 | 14438400 | 2000 | |
71223501 | zhtjtcz | E | Feb. 16, 2020, 1:01 p.m. | OK | GNU C++11 | TESTS | 94 | 93 | 20377600 | 2000 | |
71193359 | _Andromeda | E | Feb. 16, 2020, 3:16 a.m. | OK | GNU C++14 | TESTS | 94 | 93 | 19456000 | 2000 | |
71193214 | _Andromeda | E | Feb. 16, 2020, 3:11 a.m. | OK | GNU C++14 | TESTS | 94 | 109 | 22835200 | 2000 | |
71161500 | pufanyi | E | Feb. 15, 2020, 2:48 p.m. | OK | GNU C++14 | TESTS | 94 | 124 | 11468800 | 2000 | |
71148356 | wleung_bvg | E | Feb. 15, 2020, 2 p.m. | OK | GNU C++14 | TESTS | 94 | 139 | 19865600 | 2000 | |
71273128 | jinhb5519 | E | Feb. 17, 2020, 11:09 a.m. | OK | GNU C++14 | TESTS | 94 | 187 | 15564800 | 2000 | |
71273050 | jinhb5519 | E | Feb. 17, 2020, 11:07 a.m. | OK | GNU C++14 | TESTS | 94 | 187 | 15564800 | 2000 | |
71155565 | whczr | E | Feb. 15, 2020, 2:25 p.m. | OK | GNU C++14 | TESTS | 94 | 202 | 7168000 | 2000 | |
71153908 | GOATWU | E | Feb. 15, 2020, 2:19 p.m. | OK | GNU C++14 | TESTS | 94 | 202 | 13619200 | 2000 | |
71204755 | jinhb5519 | E | Feb. 16, 2020, 7:25 a.m. | OK | GNU C++14 | TESTS | 94 | 202 | 15564800 | 2000 | |
71340657 | arktan763 | E | Feb. 17, 2020, 8:34 p.m. | OK | GNU C++14 | TESTS | 94 | 233 | 9011200 | 2000 | |
71202653 | wawcac | E | Feb. 16, 2020, 6:51 a.m. | OK | GNU C++17 | TESTS | 94 | 187 | 8806400 | 2000 | |
71229735 | John_Ran | E | Feb. 16, 2020, 2:49 p.m. | OK | GNU C++17 | TESTS | 94 | 187 | 9625600 | 2000 | |
71267692 | SelfStrong_SONG | E | Feb. 17, 2020, 9:14 a.m. | OK | GNU C++17 | TESTS | 94 | 187 | 33792000 | 2000 | |
71162660 | kqsCCA | E | Feb. 15, 2020, 2:52 p.m. | OK | GNU C++17 | TESTS | 94 | 202 | 7168000 | 2000 | |
71200902 | ftiasch | E | Feb. 16, 2020, 6:19 a.m. | OK | GNU C++17 | TESTS | 94 | 202 | 12185600 | 2000 | |
71228604 | Compiled | E | Feb. 16, 2020, 2:27 p.m. | OK | GNU C++17 | TESTS | 94 | 202 | 12390400 | 2000 | |
71228354 | Compiled | E | Feb. 16, 2020, 2:23 p.m. | OK | GNU C++17 | TESTS | 94 | 202 | 13209600 | 2000 | |
71200391 | Narut | E | Feb. 16, 2020, 6:10 a.m. | OK | GNU C++17 | TESTS | 94 | 202 | 13824000 | 2000 | |
71194849 | Narut | E | Feb. 16, 2020, 4:08 a.m. | OK | GNU C++17 | TESTS | 94 | 202 | 13824000 | 2000 | |
71158733 | Ethylene | E | Feb. 15, 2020, 2:37 p.m. | OK | GNU C++17 | TESTS | 94 | 202 | 20070400 | 2000 | |
71238968 | synapse | E | Feb. 16, 2020, 5:55 p.m. | OK | Go | TESTS | 94 | 234 | 49971200 | 2000 | |
71238344 | synapse | E | Feb. 16, 2020, 5:41 p.m. | OK | Go | TESTS | 94 | 514 | 51507200 | 2000 | |
71238620 | synapse | E | Feb. 16, 2020, 5:47 p.m. | OK | Go | TESTS | 94 | 545 | 51507200 | 2000 | |
71256205 | synapse | E | Feb. 17, 2020, 4:43 a.m. | OK | Go | TESTS | 94 | 639 | 18124800 | 2000 | |
71255440 | synapse | E | Feb. 17, 2020, 4:13 a.m. | OK | Go | TESTS | 94 | 670 | 18534400 | 2000 | |
71255550 | synapse | E | Feb. 17, 2020, 4:18 a.m. | OK | Go | TESTS | 94 | 685 | 29696000 | 2000 | |
71255616 | synapse | E | Feb. 17, 2020, 4:20 a.m. | OK | Go | TESTS | 94 | 702 | 29184000 | 2000 | |
71174733 | Jughead | E | Feb. 15, 2020, 5:39 p.m. | OK | Go | TESTS | 94 | 920 | 47923200 | 2000 | |
71514688 | ontake | E | Feb. 20, 2020, 7:32 p.m. | OK | Go | TESTS | 94 | 1575 | 23244800 | 2000 | |
71388265 | Anonymous | E | Feb. 18, 2020, 3:31 p.m. | OK | Java 11 | TESTS | 94 | 452 | 6553600 | 2000 | |
71157405 | ZeyadKhattab | E | Feb. 15, 2020, 2:32 p.m. | OK | Java 11 | TESTS | 94 | 966 | 111001600 | 2000 | |
71169945 | TheSawan | E | Feb. 15, 2020, 4:47 p.m. | OK | Java 11 | TESTS | 94 | 1029 | 46080000 | 2000 | |
71141345 | lightseba | E | Feb. 15, 2020, 1:40 p.m. | OK | Java 11 | TESTS | 94 | 1045 | 129945600 | 2000 | |
71193477 | bleh0.5 | E | Feb. 16, 2020, 3:19 a.m. | OK | Java 11 | TESTS | 94 | 1091 | 88780800 | 2000 | |
71156803 | aman28rwt | E | Feb. 15, 2020, 2:30 p.m. | OK | Java 8 | TESTS | 94 | 374 | 5427200 | 2000 | |
71185418 | mbfeci | E | Feb. 15, 2020, 9:20 p.m. | OK | Java 8 | TESTS | 94 | 405 | 24371200 | 2000 | |
71191643 | Sharon | E | Feb. 16, 2020, 2:10 a.m. | OK | Java 8 | TESTS | 94 | 483 | 17715200 | 2000 | |
71176882 | BaZ_ | E | Feb. 15, 2020, 6:15 p.m. | OK | Java 8 | TESTS | 94 | 498 | 27443200 | 2000 | |
71634307 | Ahmed_Diab | E | Feb. 22, 2020, 9:08 p.m. | OK | Java 8 | TESTS | 94 | 499 | 10752000 | 2000 | |
71221218 | sonusingh.nitaa | E | Feb. 16, 2020, 12:18 p.m. | OK | Java 8 | TESTS | 94 | 530 | 39731200 | 2000 | |
71175871 | gouh9qn | E | Feb. 15, 2020, 5:58 p.m. | OK | Java 8 | TESTS | 94 | 608 | 35328000 | 2000 | |
71343336 | kraken7 | E | Feb. 17, 2020, 9:57 p.m. | OK | Java 8 | TESTS | 94 | 623 | 32563200 | 2000 | |
71343191 | kraken7 | E | Feb. 17, 2020, 9:52 p.m. | OK | Java 8 | TESTS | 94 | 623 | 32563200 | 2000 | |
71190038 | ijxjdjd | E | Feb. 16, 2020, 12:55 a.m. | OK | Java 8 | TESTS | 94 | 638 | 46284800 | 2000 | |
71156274 | Spheniscine | E | Feb. 15, 2020, 2:28 p.m. | OK | Kotlin | TESTS | 94 | 358 | 29593600 | 2000 | |
71246505 | SlavaG | E | Feb. 16, 2020, 9:13 p.m. | OK | Kotlin | TESTS | 94 | 1622 | 54681600 | 2000 | |
71173148 | hibatibati | E | Feb. 15, 2020, 5:18 p.m. | OK | Mono C# | TESTS | 94 | 763 | 25190400 | 2000 | |
71189289 | tomomo2b2 | E | Feb. 16, 2020, 12:10 a.m. | OK | Mono C# | TESTS | 94 | 764 | 45568000 | 2000 | |
71254274 | nehan_der_thal | E | Feb. 17, 2020, 3:28 a.m. | OK | Mono C# | TESTS | 94 | 951 | 39936000 | 2000 | |
71171096 | Yupiteru | E | Feb. 15, 2020, 4:54 p.m. | OK | Mono C# | TESTS | 94 | 1060 | 173260800 | 2000 | |
71215245 | plasma-effect | E | Feb. 16, 2020, 10:21 a.m. | OK | Mono C# | TESTS | 94 | 1106 | 34099200 | 2000 | |
71620197 | sergmel | E | Feb. 22, 2020, 3:30 p.m. | OK | Mono C# | TESTS | 94 | 1294 | 25702400 | 2000 | |
71220410 | vjudge5 | E | Feb. 16, 2020, 12:01 p.m. | OK | MS C++ | TESTS | 94 | 436 | 17100800 | 2000 | |
71220054 | vjudge3 | E | Feb. 16, 2020, 11:54 a.m. | OK | MS C++ | TESTS | 94 | 483 | 13619200 | 2000 | |
71157257 | songhaoran | E | Feb. 15, 2020, 2:32 p.m. | OK | MS C++ | TESTS | 94 | 623 | 13619200 | 2000 | |
71158556 | oceanlin | E | Feb. 15, 2020, 2:37 p.m. | OK | MS C++ 2017 | TESTS | 94 | 233 | 15564800 | 2000 | |
71165308 | vitux | E | Feb. 15, 2020, 3:01 p.m. | OK | MS C++ 2017 | TESTS | 94 | 358 | 16076800 | 2000 | |
71162722 | BpeMeHHa91_TryDHocTb | E | Feb. 15, 2020, 2:52 p.m. | OK | MS C++ 2017 | TESTS | 94 | 374 | 10035200 | 2000 | |
71175425 | CrashMaster | E | Feb. 15, 2020, 5:51 p.m. | OK | MS C++ 2017 | TESTS | 94 | 468 | 15462400 | 2000 | |
71170079 | CrashMaster | E | Feb. 15, 2020, 4:48 p.m. | OK | MS C++ 2017 | TESTS | 94 | 483 | 15462400 | 2000 | |
71156485 | youx | E | Feb. 15, 2020, 2:29 p.m. | OK | MS C++ 2017 | TESTS | 94 | 561 | 14540800 | 2000 | |
71225923 | btwiusearch | E | Feb. 16, 2020, 1:44 p.m. | OK | MS C++ 2017 | TESTS | 94 | 577 | 13209600 | 2000 | |
71441957 | Conar | E | Feb. 19, 2020, 2:04 p.m. | OK | MS C++ 2017 | TESTS | 94 | 654 | 57753600 | 2000 | |
71419604 | Conar | E | Feb. 19, 2020, 7:01 a.m. | OK | MS C++ 2017 | TESTS | 94 | 670 | 10752000 | 2000 | |
71336203 | extremum | E | Feb. 17, 2020, 7:14 p.m. | OK | MS C++ 2017 | TESTS | 94 | 670 | 15257600 | 2000 | |
71182917 | pajenegod | E | Feb. 15, 2020, 8:14 p.m. | OK | PyPy 2 | TESTS | 94 | 608 | 48332800 | 2000 | |
71182971 | pajenegod | E | Feb. 15, 2020, 8:16 p.m. | OK | PyPy 2 | TESTS | 94 | 639 | 48332800 | 2000 | |
71182735 | pajenegod | E | Feb. 15, 2020, 8:10 p.m. | OK | PyPy 2 | TESTS | 94 | 639 | 50176000 | 2000 | |
71162949 | pajenegod | E | Feb. 15, 2020, 2:53 p.m. | OK | PyPy 2 | TESTS | 94 | 748 | 57446400 | 2000 | |
71151046 | cftt | E | Feb. 15, 2020, 2:09 p.m. | OK | PyPy 3 | TESTS | 94 | 1871 | 35430400 | 2000 | |
71165071 | old_boo | E | Feb. 15, 2020, 3 p.m. | OK | PyPy 3 | TESTS | 94 | 2292 | 95027200 | 2000 | |
71160470 | asvasil | E | Feb. 15, 2020, 2:44 p.m. | OK | PyPy 3 | TESTS | 94 | 2324 | 27443200 | 2000 | |
71201818 | nehan_der_thal | E | Feb. 16, 2020, 6:35 a.m. | OK | PyPy 3 | TESTS | 94 | 2558 | 67686400 | 2000 | |
71251947 | nehan_der_thal | E | Feb. 17, 2020, 1:45 a.m. | OK | PyPy 3 | TESTS | 94 | 2573 | 67481600 | 2000 | |
71252046 | nehan_der_thal | E | Feb. 17, 2020, 1:50 a.m. | OK | PyPy 3 | TESTS | 94 | 2589 | 67481600 | 2000 | |
71277282 | zqx1392 | E | Feb. 17, 2020, 12:35 p.m. | OK | PyPy 3 | TESTS | 94 | 2605 | 64614400 | 2000 | |
71199940 | nehan_der_thal | E | Feb. 16, 2020, 6:02 a.m. | OK | PyPy 3 | TESTS | 94 | 2667 | 66867200 | 2000 | |
71201579 | tamato | E | Feb. 16, 2020, 6:31 a.m. | OK | PyPy 3 | TESTS | 94 | 2776 | 75571200 | 2000 | |
71196513 | nehan_der_thal | E | Feb. 16, 2020, 4:53 a.m. | OK | PyPy 3 | TESTS | 94 | 2900 | 68403200 | 2000 | |
71164737 | throwawayatcoder | E | Feb. 15, 2020, 2:59 p.m. | OK | Python 3 | TESTS | 94 | 3150 | 50995200 | 2000 | |
71383760 | sansen | E | Feb. 18, 2020, 2:18 p.m. | OK | Rust | TESTS | 94 | 124 | 18022400 | 2000 | |
71382609 | sansen | E | Feb. 18, 2020, 2:01 p.m. | OK | Rust | TESTS | 94 | 124 | 18022400 | 2000 | |
71196043 | akiradeveloper | E | Feb. 16, 2020, 4:42 a.m. | OK | Rust | TESTS | 94 | 1200 | 19660800 | 2000 | |
71547223 | mversic101 | E | Feb. 21, 2020, 11:49 a.m. | OK | Rust | TESTS | 94 | 1341 | 15462400 | 2000 | |
71201413 | terraformer | E | Feb. 16, 2020, 6:28 a.m. | OK | Rust | TESTS | 94 | 1512 | 27340800 | 2000 |
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