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Combinatorics
Maximum User Solved
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Difficulty Easy to Hard
Difficulty Hard to Easy
LightOJ ID Ascending
LightOJ ID Descending
Show unsolved only
Rooks
LOJ-1005
Easy
Solved by: 3236
Success rate: 44.67%
Solve
Parallelogram Counting
LOJ-1058
Medium
Solved by: 765
Success rate: 36.43%
Solve
Combinations
LOJ-1067
Medium
Solved by: 2242
Success rate: 39.49%
Solve
Arrange the Numbers
LOJ-1095
Medium
Solved by: 793
Success rate: 50.88%
Solve
Problem Makes Problem
LOJ-1102
Medium
Solved by: 1078
Success rate: 49.76%
Solve
How Many Zeroes?
LOJ-1140
Medium
Solved by: 1094
Success rate: 71.54%
Solve
Counting Perfect BST
LOJ-1170
Medium Hard
Solved by: 702
Success rate: 36.75%
Solve
The Vindictive Coach
LOJ-1173
Medium Hard
Solved by: 301
Success rate: 52.50%
Solve
One Unit Machine
LOJ-1226
Medium Hard
Solved by: 419
Success rate: 69.93%
Solve
Colorful Board
LOJ-1246
Hard
Solved by: 194
Success rate: 39.79%
Solve
Fantasy Cricket
LOJ-1299
Hard
Solved by: 152
Success rate: 65.28%
Solve
Strange Game
LOJ-1318
Hard
Solved by: 114
Success rate: 37.27%
Solve
Worst Case Trie
LOJ-1322
Hard
Solved by: 167
Success rate: 36.48%
Solve
Race
LOJ-1326
Medium
Solved by: 918
Success rate: 59.73%
Solve
Grid Coloring
LOJ-1333
Medium Hard
Solved by: 260
Success rate: 30.30%
Solve
Strange Summation
LOJ-1352
Hard
Solved by: 78
Success rate: 44.80%
Solve
ICPC Guards
LOJ-1365
Hard
Solved by: 48
Success rate: 48.48%
Solve
Pair of Touching Circles
LOJ-1366
Hard
Solved by: 108
Success rate: 46.51%
Solve
Energetic Pandas
LOJ-1371
Medium Hard
Solved by: 281
Success rate: 75.05%
Solve
The Queue
LOJ-1382
Medium Hard
Solved by: 411
Success rate: 54.89%
Solve
Necklace
LOJ-1419
Medium Hard
Solved by: 366
Success rate: 67.07%
Solve
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