Home
Problems
Compete
Ranks
Pricing
Sign up
Log in
LightOJ Volumes
Maximum User Solved
Minimum User Solved
Difficulty Easy to Hard
Difficulty Hard to Easy
LightOJ ID Ascending
LightOJ ID Descending
LightOJ Volume 10
LightOJ Volume 11
LightOJ Volume 12
LightOJ Volume 13
LightOJ Volume 14
Show unsolved only
Greetings from LightOJ
LOJ-1000
Easy
Solved by: 22063
Success rate: 54.45%
Solve
Opposite Task
LOJ-1001
Easy
Solved by: 15532
Success rate: 46.95%
Solve
Country Roads
LOJ-1002
Easy
Solved by: 3047
Success rate: 47.94%
Solve
Drunk
LOJ-1003
Medium
Solved by: 1866
Success rate: 28.39%
Solve
Monkey Banana Problem
LOJ-1004
Easy
Solved by: 4502
Success rate: 52.57%
Solve
Rooks
LOJ-1005
Easy
Solved by: 3386
Success rate: 44.50%
Solve
Hex-a-bonacci
LOJ-1006
Easy
Solved by: 7915
Success rate: 28.34%
Solve
Mathematically Hard
LOJ-1007
Easy
Solved by: 2879
Success rate: 26.39%
Solve
Fibsieve's Fantabulous Birthday
LOJ-1008
Easy
Solved by: 5891
Success rate: 43.43%
Solve
Back to Underworld
LOJ-1009
Easy
Solved by: 3758
Success rate: 32.54%
Solve
Knights on a Chessboard
LOJ-1010
Easy
Solved by: 4917
Success rate: 29.15%
Solve
Marriage Ceremonies
LOJ-1011
Medium
Solved by: 2644
Success rate: 50.80%
Solve
Guilty Prince
LOJ-1012
Easy
Solved by: 5173
Success rate: 77.35%
Solve
Love Calculator
LOJ-1013
Medium
Solved by: 1681
Success rate: 53.64%
Solve
Iftar Party
LOJ-1014
Medium
Solved by: 2793
Success rate: 31.40%
Solve
Brush (I)
LOJ-1015
Easy
Solved by: 7982
Success rate: 37.19%
Solve
Brush (II)
LOJ-1016
Medium
Solved by: 1912
Success rate: 55.13%
Solve
Brush (III)
LOJ-1017
Medium
Solved by: 1658
Success rate: 49.07%
Solve
Brush (IV)
LOJ-1018
Medium
Solved by: 995
Success rate: 27.36%
Solve
Brush (V)
LOJ-1019
Medium
Solved by: 2309
Success rate: 53.19%
Solve
A Childhood Game
LOJ-1020
Medium
Solved by: 2309
Success rate: 49.56%
Solve
Painful Bases
LOJ-1021
Medium
Solved by: 1216
Success rate: 52.90%
Solve
Circle in Square
LOJ-1022
Easy
Solved by: 9543
Success rate: 46.26%
Solve
Discovering Permutations
LOJ-1023
Medium
Solved by: 2503
Success rate: 60.98%
Solve
Eid
LOJ-1024
Medium
Solved by: 1260
Success rate: 42.09%
Solve
The Specials Menu
LOJ-1025
Medium
Solved by: 1501
Success rate: 53.99%
Solve
Critical Links
LOJ-1026
Medium
Solved by: 1382
Success rate: 43.86%
Solve
A Dangerous Maze
LOJ-1027
Medium
Solved by: 1763
Success rate: 70.63%
Solve
Trailing Zeroes (I)
LOJ-1028
Easy
Solved by: 2239
Success rate: 23.35%
Solve
Civil and Evil Engineer
LOJ-1029
Medium
Solved by: 1748
Success rate: 62.53%
Solve
Discovering Gold
LOJ-1030
Medium
Solved by: 1485
Success rate: 55.83%
Solve
Easy Game
LOJ-1031
Medium
Solved by: 1276
Success rate: 62.49%
Solve
Fast Bit Calculations
LOJ-1032
Medium
Solved by: 1154
Success rate: 77.02%
Solve
Generating Palindromes
LOJ-1033
Medium
Solved by: 1926
Success rate: 75.84%
Solve
Hit the Light Switches
LOJ-1034
Medium
Solved by: 1401
Success rate: 39.00%
Solve
Intelligent Factorial Factorization
LOJ-1035
Easy
Solved by: 2660
Success rate: 61.95%
Solve
A Refining Company
LOJ-1036
Medium Hard
Solved by: 662
Success rate: 70.85%
Solve
Agent 47
LOJ-1037
Medium
Solved by: 1149
Success rate: 66.88%
Solve
Race to 1 Again
LOJ-1038
Medium
Solved by: 1275
Success rate: 67.71%
Solve
A Toy Company
LOJ-1039
Medium
Solved by: 1097
Success rate: 51.05%
Solve
Donation
LOJ-1040
Medium
Solved by: 1336
Success rate: 61.05%
Solve
Road Construction
LOJ-1041
Medium
Solved by: 1566
Success rate: 63.99%
Solve
Secret Origins
LOJ-1042
Medium
Solved by: 3166
Success rate: 34.32%
Solve
Triangle Partitioning
LOJ-1043
Easy
Solved by: 4141
Success rate: 75.52%
Solve
Palindrome Partitioning
LOJ-1044
Medium
Solved by: 1253
Success rate: 54.01%
Solve
Digits of Factorial
LOJ-1045
Easy
Solved by: 4292
Success rate: 54.92%
Solve
Rider
LOJ-1046
Medium
Solved by: 1034
Success rate: 58.39%
Solve
Neighbor House
LOJ-1047
Easy
Solved by: 2898
Success rate: 72.03%
Solve
Conquering Keokradong
LOJ-1048
Medium
Solved by: 1314
Success rate: 34.31%
Solve
One Way Roads
LOJ-1049
Medium
Solved by: 1686
Success rate: 72.07%
Solve
1
2
…
9