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.
Problems
B"Koa the Koala and her best friend want to play a game. The game starts with an array a of length n consisting of non-negative integers. Koa and her best friend move in turns and each have initially a score equal to 0 . Koa starts. Let's describe a move in the game: More formally: if the current score of the player is x and the chosen element is y , his new score will be x oplus y . Here oplus denotes bitwise XOR operation. Note that after a move element y is removed from a . At the end of the game the winner is the player with the maximum score. If both players have the same score then it's a draw. If both players play optimally find out whether Koa will win, lose or draw the game. Each test contains multiple test cases. The first line contains t ( 1 <= t <= 10^4 ) -- the number of test cases. Description of the test cases follows. The first line of each test case contains the integer n ( 1 <= n <= 10^5 ) -- the length of a . The second line of each test case contains n integers a_1, a_2, ldots, a_n ( 0 <= a_i <= 10^9 ) -- elements of a . It is guaranteed that the sum of n over all test cases does not exceed 10^5 . For each test case print: In testcase 1 of the first sample we have: a = [1, 2, 2] . Here Koa chooses 1 , other player has to choose 2 , Koa chooses another 2 . Score for Koa is 1 oplus 2 = 3 and score for other player is 2 so Koa wins. "... |
Tutorials
Submissions
Submission Id |
Author(s) |
Index |
Submitted |
Verdict |
Language |
Test Set |
Tests Passed |
Time taken (ms) |
Memory Consumed (bytes) |
Tags |
Rating |
87875839 |
Gassa |
B |
July 24, 2020, 2:48 p.m. |
OK |
D |
TESTS |
46 |
62 |
10854400 |
|
|
87875494 |
hos.lyric |
B |
July 24, 2020, 2:47 p.m. |
OK |
D |
TESTS |
46 |
62 |
18227200 |
|
|
87999322 |
ruban |
B |
July 25, 2020, 3:52 p.m. |
OK |
Delphi |
TESTS |
46 |
78 |
49459200 |
|
|
87920029 |
physics0523 |
B |
July 24, 2020, 4:24 p.m. |
OK |
GNU C11 |
TESTS |
46 |
77 |
8192000 |
|
|
91702297 |
EmptySoulist |
B |
Sept. 3, 2020, 8:58 a.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
409600 |
|
|
89861394 |
BeNoble |
B |
Aug. 14, 2020, 10:22 a.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
2867200 |
|
|
87908267 |
Qza_AC |
B |
July 24, 2020, 3:53 p.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4096000 |
|
|
87896379 |
Lenstar |
B |
July 24, 2020, 3:24 p.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4300800 |
|
|
87886049 |
J_B_Y |
B |
July 24, 2020, 3:04 p.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4300800 |
|
|
87882048 |
ohweonfire |
B |
July 24, 2020, 2:58 p.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4300800 |
|
|
88163127 |
studentGZW |
B |
July 28, 2020, 12:29 a.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4300800 |
|
|
87886411 |
RNS_KSB |
B |
July 24, 2020, 3:05 p.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4403200 |
|
|
87890386 |
WYXkk |
B |
July 24, 2020, 3:12 p.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4505600 |
|
|
88419135 |
hkxadpall |
B |
July 30, 2020, 8:40 a.m. |
OK |
GNU C++11 |
TESTS |
46 |
31 |
4505600 |
|
|
90386733 |
petjelinux |
B |
Aug. 19, 2020, 12:13 p.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
409600 |
|
|
89208593 |
icysky |
B |
Aug. 7, 2020, 1:43 p.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
3686400 |
|
|
90862081 |
lavenderwithbluish |
B |
Aug. 25, 2020, 2:02 a.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
3993600 |
|
|
87969519 |
kem_palty |
B |
July 25, 2020, 8:05 a.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
4096000 |
|
|
87939829 |
frundemprador |
B |
July 24, 2020, 8:04 p.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
4096000 |
|
|
87912726 |
ShubhamAvasthi |
B |
July 24, 2020, 4:05 p.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
4096000 |
|
|
87896281 |
Linkus |
B |
July 24, 2020, 3:24 p.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
4096000 |
|
|
87894864 |
1207koo |
B |
July 24, 2020, 3:21 p.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
4096000 |
|
|
88417357 |
dPonkratov |
B |
July 30, 2020, 8:20 a.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
4096000 |
|
|
87879538 |
pikmike |
B |
July 24, 2020, 2:54 p.m. |
OK |
GNU C++14 |
TESTS |
46 |
46 |
4096000 |
|
|
90267352 |
spatarel |
B |
Aug. 17, 2020, 11:49 p.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
409600 |
|
|
88564467 |
jiangly |
B |
July 31, 2020, 6:45 a.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4096000 |
|
|
88548852 |
yoddhaa |
B |
July 31, 2020, 1:48 a.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4096000 |
|
|
88159661 |
pavlovoleg4889 |
B |
July 27, 2020, 9:35 p.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4096000 |
|
|
87939789 |
tinca_matei |
B |
July 24, 2020, 8:03 p.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4096000 |
|
|
88547608 |
Meeena |
B |
July 31, 2020, 1:12 a.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4198400 |
|
|
87962086 |
kc_17 |
B |
July 25, 2020, 6:06 a.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4198400 |
|
|
87901515 |
walnutwaldo20 |
B |
July 24, 2020, 3:36 p.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4812800 |
|
|
87941790 |
xsc |
B |
July 24, 2020, 8:46 p.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
4812800 |
|
|
87877690 |
LayCurse |
B |
July 24, 2020, 2:51 p.m. |
OK |
GNU C++17 |
TESTS |
46 |
46 |
6246400 |
|
|
87950730 |
Alphagocc |
B |
July 25, 2020, 2:12 a.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
31 |
5222400 |
|
|
87890837 |
NotaMotuaQAQ |
B |
July 24, 2020, 3:13 p.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
31 |
8908800 |
|
|
90462215 |
ddvddv |
B |
Aug. 20, 2020, 12:34 p.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
0 |
|
|
90899648 |
GRandle |
B |
Aug. 25, 2020, 12:39 p.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
409600 |
|
|
91226729 |
Geothermal |
B |
Aug. 28, 2020, 4:14 p.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
409600 |
|
|
90283012 |
Heltion |
B |
Aug. 18, 2020, 6:44 a.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
409600 |
|
|
88741755 |
Parsa84 |
B |
Aug. 2, 2020, 3:13 p.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
4300800 |
|
|
88699733 |
user202729_ |
B |
Aug. 2, 2020, 2:36 a.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
4300800 |
|
|
88205793 |
Stepavly |
B |
July 28, 2020, 1:05 p.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
4300800 |
|
|
87900987 |
achvanov |
B |
July 24, 2020, 3:35 p.m. |
OK |
GNU C++17 (64) |
TESTS |
46 |
46 |
4300800 |
|
|
88245864 |
synapse |
B |
July 29, 2020, 2:56 a.m. |
OK |
Go |
TESTS |
46 |
109 |
11264000 |
|
|
87872809 |
Lewin |
B |
July 24, 2020, 2:43 p.m. |
OK |
Java 11 |
TESTS |
46 |
202 |
23859200 |
|
|
91442733 |
dubai03nsr |
B |
Aug. 30, 2020, 10:36 p.m. |
OK |
Java 11 |
TESTS |
46 |
218 |
23961600 |
|
|
87900150 |
PizzaLovers007 |
B |
July 24, 2020, 3:33 p.m. |
OK |
Java 11 |
TESTS |
46 |
233 |
23859200 |
|
|
87897025 |
uwi |
B |
July 24, 2020, 3:26 p.m. |
OK |
Java 11 |
TESTS |
46 |
233 |
23961600 |
|
|
87913178 |
mphillotry |
B |
July 24, 2020, 4:06 p.m. |
OK |
Java 11 |
TESTS |
46 |
248 |
23859200 |
|
|
87904745 |
awesomelemonade |
B |
July 24, 2020, 3:44 p.m. |
OK |
Java 11 |
TESTS |
46 |
248 |
23859200 |
|
|
87904275 |
mikit |
B |
July 24, 2020, 3:43 p.m. |
OK |
Java 11 |
TESTS |
46 |
249 |
24064000 |
|
|
88624708 |
Richard727 |
B |
July 31, 2020, 10:33 p.m. |
OK |
Java 11 |
TESTS |
46 |
249 |
27340800 |
|
|
90713867 |
yashkundu |
B |
Aug. 22, 2020, 7:30 p.m. |
OK |
Java 11 |
TESTS |
46 |
265 |
23859200 |
|
|
88417714 |
reniowood |
B |
July 30, 2020, 8:24 a.m. |
OK |
Java 11 |
TESTS |
46 |
296 |
23859200 |
|
|
87895700 |
spar5h |
B |
July 24, 2020, 3:23 p.m. |
OK |
Java 8 |
TESTS |
46 |
124 |
20480000 |
|
|
87900882 |
KharYusuf |
B |
July 24, 2020, 3:35 p.m. |
OK |
Java 8 |
TESTS |
46 |
140 |
20787200 |
|
|
88883865 |
yaoct |
B |
Aug. 4, 2020, 3:21 p.m. |
OK |
Java 8 |
TESTS |
46 |
140 |
24678400 |
|
|
88838184 |
llaki |
B |
Aug. 4, 2020, 3:43 a.m. |
OK |
Java 8 |
TESTS |
46 |
140 |
24678400 |
|
|
87916124 |
fetetriste |
B |
July 24, 2020, 4:14 p.m. |
OK |
Java 8 |
TESTS |
46 |
140 |
24678400 |
|
|
88683970 |
JCKG |
B |
Aug. 1, 2020, 5:24 p.m. |
OK |
Java 8 |
TESTS |
46 |
140 |
24780800 |
|
|
87915692 |
StayAwayFromBitches |
B |
July 24, 2020, 4:13 p.m. |
OK |
Java 8 |
TESTS |
46 |
140 |
42700800 |
|
|
88174595 |
elkadymohammed01 |
B |
July 28, 2020, 5:50 a.m. |
OK |
Java 8 |
TESTS |
46 |
155 |
20377600 |
|
|
88400803 |
abc_000 |
B |
July 30, 2020, 4:33 a.m. |
OK |
Java 8 |
TESTS |
46 |
155 |
20480000 |
|
|
87907307 |
Charlesna |
B |
July 24, 2020, 3:50 p.m. |
OK |
Java 8 |
TESTS |
46 |
155 |
20787200 |
|
|
87894371 |
ekaerovets |
B |
July 24, 2020, 3:20 p.m. |
OK |
Kotlin |
TESTS |
46 |
155 |
20582400 |
|
|
87897109 |
Hakiobo |
B |
July 24, 2020, 3:26 p.m. |
OK |
Kotlin |
TESTS |
46 |
155 |
20992000 |
|
|
88571178 |
Spheniscine |
B |
July 31, 2020, 8:08 a.m. |
OK |
Kotlin |
TESTS |
46 |
155 |
22323200 |
|
|
88220350 |
user32 |
B |
July 28, 2020, 4:02 p.m. |
OK |
Kotlin |
TESTS |
46 |
155 |
25190400 |
|
|
88220632 |
user32 |
B |
July 28, 2020, 4:06 p.m. |
OK |
Kotlin |
TESTS |
46 |
156 |
26521600 |
|
|
88797631 |
wpansdl1004 |
B |
Aug. 3, 2020, 12:24 p.m. |
OK |
Kotlin |
TESTS |
46 |
187 |
27955200 |
|
|
87915472 |
alexey.enkov |
B |
July 24, 2020, 4:12 p.m. |
OK |
Kotlin |
TESTS |
46 |
327 |
27033600 |
|
|
91646532 |
cmplx-xyttmt |
B |
Sept. 2, 2020, 1:53 p.m. |
OK |
Kotlin |
TESTS |
46 |
389 |
7577600 |
|
|
87905188 |
EmK |
B |
July 24, 2020, 3:45 p.m. |
OK |
Mono C# |
TESTS |
46 |
108 |
11980800 |
|
|
91701079 |
azukun |
B |
Sept. 3, 2020, 8:38 a.m. |
OK |
Mono C# |
TESTS |
46 |
124 |
16281600 |
|
|
87900935 |
terry_u16 |
B |
July 24, 2020, 3:35 p.m. |
OK |
Mono C# |
TESTS |
46 |
124 |
24883200 |
|
|
87900225 |
fiver |
B |
July 24, 2020, 3:33 p.m. |
OK |
Mono C# |
TESTS |
46 |
124 |
233984000 |
|
|
87899956 |
Yupiteru |
B |
July 24, 2020, 3:32 p.m. |
OK |
Mono C# |
TESTS |
46 |
139 |
15974400 |
|
|
87914846 |
eSeF_ |
B |
July 24, 2020, 4:11 p.m. |
OK |
Mono C# |
TESTS |
46 |
139 |
87347200 |
|
|
87922061 |
mban259 |
B |
July 24, 2020, 4:29 p.m. |
OK |
Mono C# |
TESTS |
46 |
140 |
24883200 |
|
|
87899281 |
tarattata1 |
B |
July 24, 2020, 3:31 p.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
62 |
4403200 |
|
|
87883693 |
pichulia |
B |
July 24, 2020, 3 p.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
78 |
4812800 |
|
|
87909726 |
nns2009 |
B |
July 24, 2020, 3:57 p.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
124 |
4096000 |
|
|
87914925 |
Numbervan |
B |
July 24, 2020, 4:11 p.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
124 |
4096000 |
|
|
88078592 |
kupriyanov |
B |
July 26, 2020, 6:14 p.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
124 |
4505600 |
|
|
88011278 |
60D9 |
B |
July 25, 2020, 7:22 p.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
156 |
3686400 |
|
|
88103725 |
vjudge3 |
B |
July 27, 2020, 6:55 a.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
171 |
3686400 |
|
|
88103707 |
1912607519 |
B |
July 27, 2020, 6:54 a.m. |
OK |
MS C++ 2017 |
TESTS |
46 |
171 |
3788800 |
|
|
87892158 |
pajenegod |
B |
July 24, 2020, 3:16 p.m. |
OK |
PyPy 2 |
TESTS |
46 |
280 |
33075200 |
|
|
88896286 |
shehebe |
B |
Aug. 4, 2020, 6:19 p.m. |
OK |
PyPy 2 |
TESTS |
46 |
483 |
32972800 |
|
|
87908978 |
alexwice |
B |
July 24, 2020, 3:55 p.m. |
OK |
PyPy 2 |
TESTS |
46 |
483 |
44441600 |
|
|
89192986 |
SK_EON |
B |
Aug. 7, 2020, 9:40 a.m. |
OK |
PyPy 2 |
TESTS |
46 |
904 |
34201600 |
|
|
89192469 |
SK_EON |
B |
Aug. 7, 2020, 9:32 a.m. |
OK |
PyPy 2 |
TESTS |
46 |
936 |
34201600 |
|
|
87918082 |
Hitikkumar |
B |
July 24, 2020, 4:19 p.m. |
OK |
PyPy 2 |
TESTS |
46 |
998 |
32563200 |
|
|
87896095 |
pineriver |
B |
July 24, 2020, 3:24 p.m. |
OK |
PyPy 3 |
TESTS |
46 |
202 |
29388800 |
|
|
87926633 |
anagohirame |
B |
July 24, 2020, 5:07 p.m. |
OK |
PyPy 3 |
TESTS |
46 |
233 |
29388800 |
|
|
88437739 |
manhar |
B |
July 30, 2020, 12:20 p.m. |
OK |
PyPy 3 |
TESTS |
46 |
233 |
30105600 |
|
|
88548135 |
TheVan |
B |
July 31, 2020, 1:26 a.m. |
OK |
PyPy 3 |
TESTS |
46 |
248 |
28672000 |
|
|
89178890 |
siyy |
B |
Aug. 7, 2020, 6:22 a.m. |
OK |
PyPy 3 |
TESTS |
46 |
296 |
30412800 |
|
|
88111660 |
tycyd |
B |
July 27, 2020, 8:57 a.m. |
OK |
PyPy 3 |
TESTS |
46 |
296 |
31027200 |
|
|
88755278 |
340951987 |
B |
Aug. 2, 2020, 6:42 p.m. |
OK |
PyPy 3 |
TESTS |
46 |
296 |
31232000 |
|
|
87890140 |
chinerist |
B |
July 24, 2020, 3:12 p.m. |
OK |
PyPy 3 |
TESTS |
46 |
311 |
30924800 |
|
|
87901703 |
SPD_9X2 |
B |
July 24, 2020, 3:36 p.m. |
OK |
PyPy 3 |
TESTS |
46 |
326 |
30924800 |
|
|
88239596 |
throwawayatcoder |
B |
July 28, 2020, 10:35 p.m. |
OK |
PyPy 3 |
TESTS |
46 |
327 |
29900800 |
|
|
87903513 |
nebocco |
B |
July 24, 2020, 3:41 p.m. |
OK |
Python 3 |
TESTS |
46 |
202 |
15462400 |
|
|
87939602 |
frundemprador |
B |
July 24, 2020, 8 p.m. |
OK |
Python 3 |
TESTS |
46 |
748 |
14540800 |
|
|
90361671 |
lahari21 |
B |
Aug. 19, 2020, 6:07 a.m. |
OK |
Python 3 |
TESTS |
46 |
779 |
9728000 |
|
|
88851353 |
ramayasam28 |
B |
Aug. 4, 2020, 7:46 a.m. |
OK |
Python 3 |
TESTS |
46 |
779 |
16281600 |
|
|
88015688 |
BenL |
B |
July 25, 2020, 8:57 p.m. |
OK |
Python 3 |
TESTS |
46 |
811 |
17510400 |
|
|
87974657 |
mkawa2 |
B |
July 25, 2020, 9:26 a.m. |
OK |
Python 3 |
TESTS |
46 |
872 |
15974400 |
|
|
88581673 |
KRC_Swaag |
B |
July 31, 2020, 10:22 a.m. |
OK |
Python 3 |
TESTS |
46 |
951 |
16179200 |
|
|
87906197 |
su565fx |
B |
July 24, 2020, 3:47 p.m. |
OK |
Python 3 |
TESTS |
46 |
967 |
15872000 |
|
|
87883080 |
sansen |
B |
July 24, 2020, 2:59 p.m. |
OK |
Rust |
TESTS |
46 |
46 |
6963200 |
|
|
88203668 |
Strorkis |
B |
July 28, 2020, 12:35 p.m. |
OK |
Rust |
TESTS |
46 |
171 |
6963200 |
|
|
87904863 |
ngtkana |
B |
July 24, 2020, 3:44 p.m. |
OK |
Rust |
TESTS |
46 |
171 |
7782400 |
|
|
87891521 |
Russell_Emerine |
B |
July 24, 2020, 3:14 p.m. |
OK |
Rust |
TESTS |
46 |
171 |
9830400 |
|
|
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