cf/mirror
11,311/11,320 captured·📄 81 PDFs⊘ 0 skipped9 remaining100%

Problemset

570 problems · filtered by 2 tags

✓#Name✎Rating↕Solved↕
1635ECars
2-satconstructive algorithmsdfs and similardsugraphsgreedysortings
22002.9k
1634EFair Share
constructive algorithmsdata structuresdfs and similargraph matchingsgraphs
24002.3k
1633ESpanning Tree Queries
binary searchdata structuresdfs and similardsugraphsgreedymathsortingstrees
24001.8k
1632E1Distance Tree (easy version)
binary searchdata structuresdfs and similargraphsshortest pathstrees
24001.4k
1625E1Cats on the Upgrade (easy version)
brute forcedata structuresdfs and similardivide and conquerdpgraphstrees
25001.2k
1625E2Cats on the Upgrade (hard version)
binary searchdata structuresdfs and similargraphstrees
2800705
1624GMinOr Tree
bitmasksdfs and similardsugraphsgreedy
19007.9k
1621HTrains and Airplanes
dfs and similargraphsshortest pathstrees
3500267
1617EChristmas Chocolates
dfs and similardpgamesgraphsimplementationmathnumber theoryshortest pathstrees
27001.1k
1616GJust Add an Edge
dfs and similardpgraphs
3500462
1615DX(or)-mas Tree
bitmasksdfs and similardsugraphstrees
22002.2k
1615EPurple Crayon
data structuresdfs and similargamesgraphsgreedymathsortingstrees
24001.8k
1613ECrazy Robot
dfs and similargraphs
20006k
1610FMashtali: a Space Oddysey
constructive algorithmsdfs and similargraphs
3000716
1608CGame Master
data structuresdfs and similardpgraphsgreedytwo pointers
17007.4k
1607FRobot on the Board 2
brute forcedfs and similargraphsimplementation
23002.2k
1601BFrog Traveler
data structuresdfs and similardpgraphsshortest pathstwo pointers
19005.6k
1594DThe Number of Imposters
constructive algorithmsdfs and similardpdsugraphs
17009.8k
1592CBakry and Partitioning
bitmasksconstructive algorithmsdfs and similardpgraphstrees
17009.3k
1583EMoment of Bloom
constructive algorithmsdfs and similargraph matchingsgraphsgreedytrees
22002.5k
1574DThe Strongest Build
binary searchbrute forcedata structuresdfs and similargraphsgreedyhashingimplementation
20004.9k
1574FOccurrences
combinatoricsdfs and similardpdsufftgraphs
2700786
1569FPalindromic Hamiltonian Path
brute forcedfs and similardpgraphshashing
3000493
1567FOne-Four Overload
2-satconstructive algorithmsdfs and similardsugraphsimplementation
2700888
1559D2Mocha and Diana (Hard Version)
brute forceconstructive algorithmsdfs and similardsugraphsgreedytreestwo pointers
25003.2k
1558EDown Below
binary searchdfs and similargraphsgreedymeet-in-the-middleshortest paths
3000726
1553EPermutation Shift
brute forcecombinatoricsconstructive algorithmsdfs and similardsugraphsmath
21003.8k
1552DArray Differentiation
bitmasksbrute forceconstructive algorithmsdfs and similardpgraphsmath
18008k
1549BGregor and the Pawn Game
dfs and similardpflowsgraph matchingsgraphsgreedyimplementation
80027.2k
1547GHow Many Paths?
dfs and similardpgraphstrees
21003.7k
1537FFigure Fixing
constructive algorithmsdfs and similardsugraphsgreedymath
22002.9k
1534F1Falling Sand (Easy Version)
dfs and similargraphsgreedy
25001.5k
1534F2Falling Sand (Hard Version)
dfs and similardpgraphsgreedy
3000790
1533GBiome Map
*specialconstructive algorithmsdfs and similargraphs
unrated98
1533IExcursions
*specialconstructive algorithmsdfs and similarflowsgraph matchingsgraphs
unrated61
1520GTo Go Or Not To Go?
brute forcedfs and similargraphsgreedyimplementationshortest paths
22004.4k
1519EOff by One
constructive algorithmsdfs and similargeometrygraphssortingstrees
2700943
1515FPhoenix and Earthquake
constructive algorithmsdfs and similardsugraphsgreedytrees
26002.2k
1515GPhoenix and Odometers
dfs and similargraphsmathnumber theory
27001.4k
1510CCactus Not Enough
dfs and similargraph matchingsgraphs
2900247
1508CComplete the MST
bitmasksbrute forcedata structuresdfs and similardsugraphsgreedytrees
25001.8k
1498DBananas in a Microwave
dfs and similardpgraphsimplementation
22002.5k
1495DBFS Trees
combinatoricsdfs and similargraphsmathshortest pathstrees
26001.6k
1494FDelete The Edges
brute forceconstructive algorithmsdfs and similargraphsimplementation
2900531
1487CMinimum Ties
brute forceconstructive algorithmsdfs and similargraphsgreedyimplementationmath
150015.6k
1477DNezzar and Hidden Permutations
constructive algorithmsdfs and similargraphs
2800808
1476EPattern Matching
bitmasksdata structuresdfs and similargraphshashingsortingsstrings
23002.8k
1472GMoving to the Capital
dfs and similardpgraphsshortest paths
21005.8k
1470DStrange Housing
constructive algorithmsdfs and similargraph matchingsgraphsgreedy
22004.3k
1466FEuclid's nightmare
bitmasksdfs and similardsugraphsgreedymathsortings
21003.1k
1463EPlan of Lectures
constructive algorithmsdfs and similardsugraphsimplementationsortingstrees
24001.8k
1454ENumber of Simple Paths
combinatoricsdfs and similargraphstrees
20006.8k
1450ECapitalism
constructive algorithmsdfs and similargraphsshortest paths
27001.5k
1444CTeam-Building
data structuresdfs and similardsugraphs
25001.9k
1442CGraph Transpositions
dfs and similargraphsgreedyshortest paths
24002k
1436DBandit in a City
binary searchdfs and similargraphsgreedytrees
19006.6k
1430GYet Another DAG Problem
bitmasksdfs and similardpflowsgraphsmath
2600949
1419FRain of Fire
binary searchdata structuresdfs and similardsugraphsimplementation
2800632
1411CPeaceful Rooks
dfs and similardsugraphs
17008.7k
1407EEgor in the Republic of Dagestan
constructive algorithmsdfs and similardpgraphsgreedyshortest paths
25002k
1406CLink Cut Centroids
constructive algorithmsdfs and similargraphstrees
170012k
1403BSpring cleaning
*specialdata structuresdfs and similargraphstrees
2300437
1402CStar Trek
*specialcombinatoricsdfs and similardpgamesgraphsmatricestrees
2600271
1394BBoboniu Walks on Graph
brute forcedfs and similargraphshashing
23002.2k
1391EPairs of Pairs
constructive algorithmsdfs and similargraphsgreedytrees
26002.1k
1389GDirecting Edges
dfs and similardpgraphstrees
2800540
1388DCaptain Flint and Treasure
data structuresdfs and similargraphsgreedyimplementationtrees
20007k
1385EDirecting Edges
constructive algorithmsdfs and similargraphs
20009.5k
1385GColumns Swaps
2-satdfs and similardsugraphsimplementation
23001.9k
1375GTree Modification
brute forceconstructive algorithmsdfs and similargraph matchingsgraphstrees
28002.3k
1370F1The Hidden Pair (Easy Version)
binary searchdfs and similargraphsinteractiveshortest pathstrees
24001.8k
1370F2The Hidden Pair (Hard Version)
binary searchdfs and similargraphsinteractiveshortest pathstrees
27001.7k
1367ENecklace Assembly
brute forcedfs and similardpgraphsgreedynumber theory
19005.9k
1365DSolve The Maze
constructive algorithmsdfs and similardsugraphsgreedyimplementationshortest paths
170021.3k
1364DEhab's Last Corollary
constructive algorithmsdfs and similargraphsgreedyimplementationtrees
21005.1k
1361CJohnny and Megan's Necklace
binary searchbitmasksconstructive algorithmsdfs and similardsugraphs
25002.1k
1361EJames and the Chase
dfs and similargraphsprobabilitiestrees
30001k
1354EGraph Coloring
dfs and similardpgraphs
21003.8k
1349COrac and Game of Life
dfs and similargraphsimplementationshortest paths
20004.9k
1348FPhoenix and Memory
data structuresdfs and similargraphsgreedy
2600968
1344BMonopole Magnets
constructive algorithmsdfs and similardsugraphs
20006.4k
1344CQuantifier Question
dfs and similardpgraphsmath
26002k
1340CNastya and Unexpected Guest
dfs and similardpgraphsshortest paths
24002.5k
1340DNastya and Time Machine
constructive algorithmsdfs and similargraphstrees
26001.1k
1335FRobots on a Grid
data structuresdfs and similardsugraphsgreedymatrices
22002.5k
1328ETree Queries
dfs and similargraphstrees
190012.3k
1327DInfinite Path
brute forcedfs and similargraphsmathnumber theory
22003.6k
1325EEhab's REAL Number Theory Problem
brute forcedfs and similargraphsnumber theoryshortest paths
26002.4k
1325FEhab's Last Theorem
constructive algorithmsdfs and similargraphsgreedy
25002.4k
1324FMaximum White Subtree
dfs and similardpgraphstrees
180013.6k
1320BNavigation System
dfs and similargraphsshortest paths
17006.5k
1316DNash Matrix
constructive algorithmsdfs and similargraphsimplementation
20003.7k
1307DCow and Fields
binary searchdata structuresdfs and similargraphsgreedyshortest pathssortings
19007.4k
1301FSuper Jaber
dfs and similargraphsimplementationshortest paths
26001.5k
1299DAround the World
bitmaskscombinatoricsdfs and similardpgraphsmathtrees
3000652
1290CPrefix Enlightenment
dfs and similardsugraphs
24002.1k
1286BNumbers on Tree
constructive algorithmsdata structuresdfs and similargraphsgreedytrees
18005.7k
1282EThe Cake Is a Lie
constructive algorithmsdata structuresdfs and similargraphs
24001.2k
1280CJeremy Bearimy
dfs and similargraphsgreedytrees
20003.1k
1276BTwo Fairs
combinatoricsdfs and similardsugraphs
19005.7k

showing 201–300 of 570