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: 22161
Success rate: 54.53%
Solve
Opposite Task
LOJ-1001
Easy
Solved by: 15602
Success rate: 47.02%
Solve
Country Roads
LOJ-1002
Easy
Solved by: 3067
Success rate: 47.82%
Solve
Drunk
LOJ-1003
Medium
Solved by: 1881
Success rate: 28.33%
Solve
Monkey Banana Problem
LOJ-1004
Easy
Solved by: 4528
Success rate: 52.49%
Solve
Rooks
LOJ-1005
Easy
Solved by: 3414
Success rate: 44.50%
Solve
Hex-a-bonacci
LOJ-1006
Easy
Solved by: 7953
Success rate: 28.41%
Solve
Mathematically Hard
LOJ-1007
Easy
Solved by: 2902
Success rate: 26.32%
Solve
Fibsieve's Fantabulous Birthday
LOJ-1008
Easy
Solved by: 5906
Success rate: 43.41%
Solve
Back to Underworld
LOJ-1009
Easy
Solved by: 3773
Success rate: 32.53%
Solve
Knights on a Chessboard
LOJ-1010
Easy
Solved by: 4929
Success rate: 29.17%
Solve
Marriage Ceremonies
LOJ-1011
Medium
Solved by: 2658
Success rate: 50.85%
Solve
Guilty Prince
LOJ-1012
Easy
Solved by: 5217
Success rate: 77.48%
Solve
Love Calculator
LOJ-1013
Medium
Solved by: 1688
Success rate: 53.68%
Solve
Iftar Party
LOJ-1014
Medium
Solved by: 2815
Success rate: 31.47%
Solve
Brush (I)
LOJ-1015
Easy
Solved by: 8003
Success rate: 37.20%
Solve
Brush (II)
LOJ-1016
Medium
Solved by: 1921
Success rate: 55.17%
Solve
Brush (III)
LOJ-1017
Medium
Solved by: 1664
Success rate: 49.02%
Solve
Brush (IV)
LOJ-1018
Medium
Solved by: 1001
Success rate: 27.25%
Solve
Brush (V)
LOJ-1019
Medium
Solved by: 2321
Success rate: 53.25%
Solve
A Childhood Game
LOJ-1020
Medium
Solved by: 2319
Success rate: 49.65%
Solve
Painful Bases
LOJ-1021
Medium
Solved by: 1218
Success rate: 52.94%
Solve
Circle in Square
LOJ-1022
Easy
Solved by: 9574
Success rate: 46.26%
Solve
Discovering Permutations
LOJ-1023
Medium
Solved by: 2514
Success rate: 61.04%
Solve
Eid
LOJ-1024
Medium
Solved by: 1269
Success rate: 42.12%
Solve
The Specials Menu
LOJ-1025
Medium
Solved by: 1506
Success rate: 53.95%
Solve
Critical Links
LOJ-1026
Medium
Solved by: 1388
Success rate: 43.83%
Solve
A Dangerous Maze
LOJ-1027
Medium
Solved by: 1769
Success rate: 70.55%
Solve
Trailing Zeroes (I)
LOJ-1028
Easy
Solved by: 2252
Success rate: 23.34%
Solve
Civil and Evil Engineer
LOJ-1029
Medium
Solved by: 1761
Success rate: 62.65%
Solve
Discovering Gold
LOJ-1030
Medium
Solved by: 1489
Success rate: 55.75%
Solve
Easy Game
LOJ-1031
Medium
Solved by: 1281
Success rate: 62.48%
Solve
Fast Bit Calculations
LOJ-1032
Medium
Solved by: 1159
Success rate: 77.08%
Solve
Generating Palindromes
LOJ-1033
Medium
Solved by: 1935
Success rate: 75.79%
Solve
Hit the Light Switches
LOJ-1034
Medium
Solved by: 1407
Success rate: 38.97%
Solve
Intelligent Factorial Factorization
LOJ-1035
Easy
Solved by: 2673
Success rate: 62.05%
Solve
A Refining Company
LOJ-1036
Medium Hard
Solved by: 669
Success rate: 70.76%
Solve
Agent 47
LOJ-1037
Medium
Solved by: 1154
Success rate: 66.71%
Solve
Race to 1 Again
LOJ-1038
Medium
Solved by: 1281
Success rate: 67.76%
Solve
A Toy Company
LOJ-1039
Medium
Solved by: 1102
Success rate: 50.92%
Solve
Donation
LOJ-1040
Medium
Solved by: 1341
Success rate: 61.12%
Solve
Road Construction
LOJ-1041
Medium
Solved by: 1572
Success rate: 64.02%
Solve
Secret Origins
LOJ-1042
Medium
Solved by: 3176
Success rate: 34.35%
Solve
Triangle Partitioning
LOJ-1043
Easy
Solved by: 4180
Success rate: 75.60%
Solve
Palindrome Partitioning
LOJ-1044
Medium
Solved by: 1257
Success rate: 53.89%
Solve
Digits of Factorial
LOJ-1045
Easy
Solved by: 4306
Success rate: 54.92%
Solve
Rider
LOJ-1046
Medium
Solved by: 1038
Success rate: 58.27%
Solve
Neighbor House
LOJ-1047
Easy
Solved by: 2914
Success rate: 72.11%
Solve
Conquering Keokradong
LOJ-1048
Medium
Solved by: 1330
Success rate: 34.00%
Solve
One Way Roads
LOJ-1049
Medium
Solved by: 1694
Success rate: 72.07%
Solve
1
2
…
9