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obk

Practise makes perfect!
Rank by solved37127 out of 166417
Problems solved9 out of 1198
Rank by rating25027 out of 166417
Rating2019 out of 1713101
Recent submissions
Recent accepted submissions

The map of solved problems

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Sort by volume and id | volume and difficulty | difficulty
Volume 1Rank in ranklist: 14212 out of 134181
 
Problems solved: 9 out of 100
10001001100210031004100510061007100810091010101110121013101410151016101710181019
10201021102210231024102510261027102810291030103110321033103410351036103710381039
10401041104210431044104510461047104810491050105110521053105410551056105710581059
10601061106210631064106510661067106810691070107110721073107410751076107710781079
10801081108210831084108510861087108810891090109110921093109410951096109710981099
Volume 2
11001101110211031104110511061107110811091110111111121113111411151116111711181119
11201121112211231124112511261127112811291130113111321133113411351136113711381139
11401141114211431144114511461147114811491150115111521153115411551156115711581159
11601161116211631164116511661167116811691170117111721173117411751176117711781179
11801181118211831184118511861187118811891190119111921193119411951196119711981199
Volume 3
12001201120212031204120512061207120812091210121112121213121412151216121712181219
12201221122212231224122512261227122812291230123112321233123412351236123712381239
12401241124212431244124512461247124812491250125112521253125412551256125712581259
12601261126212631264126512661267126812691270127112721273127412751276127712781279
12801281128212831284128512861287128812891290129112921293129412951296129712981299
Volume 4
13001301130213031304130513061307130813091310131113121313131413151316131713181319
13201321132213231324132513261327132813291330133113321333133413351336133713381339
13401341134213431344134513461347134813491350135113521353135413551356135713581359
13601361136213631364136513661367136813691370137113721373137413751376137713781379
13801381138213831384138513861387138813891390139113921393139413951396139713981399
Volume 5
14001401140214031404140514061407140814091410141114121413141414151416141714181419
14201421142214231424142514261427142814291430143114321433143414351436143714381439
14401441144214431444144514461447144814491450145114521453145414551456145714581459
14601461146214631464146514661467146814691470147114721473147414751476147714781479
14801481148214831484148514861487148814891490149114921493149414951496149714981499
Volume 6
15001501150215031504150515061507150815091510151115121513151415151516151715181519
15201521152215231524152515261527152815291530153115321533153415351536153715381539
15401541154215431544154515461547154815491550155115521553155415551556155715581559
15601561156215631564156515661567156815691570157115721573157415751576157715781579
15801581158215831584158515861587158815891590159115921593159415951596159715981599
Volume 7
16001601160216031604160516061607160816091610161116121613161416151616161716181619
16201621162216231624162516261627162816291630163116321633163416351636163716381639
16401641164216431644164516461647164816491650165116521653165416551656165716581659
16601661166216631664166516661667166816691670167116721673167416751676167716781679
16801681168216831684168516861687168816891690169116921693169416951696169716981699
Volume 8
17001701170217031704170517061707170817091710171117121713171417151716171717181719
17201721172217231724172517261727172817291730173117321733173417351736173717381739
17401741174217431744174517461747174817491750175117521753175417551756175717581759
17601761176217631764176517661767176817691770177117721773177417751776177717781779
17801781178217831784178517861787178817891790179117921793179417951796179717981799
Volume 9
18001801180218031804180518061807180818091810181118121813181418151816181718181819
18201821182218231824182518261827182818291830183118321833183418351836183718381839
18401841184218431844184518461847184818491850185118521853185418551856185718581859
18601861186218631864186518661867186818691870187118721873187418751876187718781879
188018811882188318841885188618871888188918901891189218931894189518961897
Volume 10
19001901190219031904190519061907190819091910191119121913191419151916191719181919
19201921192219231924192519261927192819291930193119321933193419351936193719381939
19401941194219431944194519461947194819491950195119521953195419551956195719581959
19601961196219631964196519661967196819691970197119721973197419751976197719781979
19801981198219831984198519861987198819891990199119921993199419951996199719981999
Volume 11
20002001200220032004200520062007200820092010201120122013201420152016201720182019
20202021202220232024202520262027202820292030203120322033203420352036203720382039
20402041204220432044204520462047204820492050205120522053205420552056205720582059
20602061206220632064206520662067206820692070207120722073207420752076207720782079
20802081208220832084208520862087208820892090209120922093209420952096209720982099
Volume 12
21002101210221032104210521062107210821092110211121122113211421152116211721182119
21202121212221232124212521262127212821292130213121322133213421352136213721382139
21402141214221432144214521462147214821492150215121522153215421552156215721582159
21602161216221632164216521662167216821692170217121722173217421752176217721782179
21802181218221832184218521862187218821892190219121922193219421952196219721982199

Neighbours

RankAuthorRatingSolvedLast AC
37124nash6352029923 Mar 2010 12:51
37125Snail202594 Nov 2008 12:53
37126hnqw12142024915 Aug 2013 10:40
37127obk201997 Aug 2011 21:22
37128voquocthang2017922 Aug 2016 20:56
37129guofei2013918 Aug 2009 23:05
37130Yunzhi Gao2011911 Dec 2014 10:16
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