Problems by Lewin Gan

Name Fastest Shortest Total Acc. Ratio Difficulty Languages
AND Permutation 0.22 551 201 36 18% 8.6Hard en
Archery Accuracy 0.01 1127 70 23 33% 6.6Hard en
Avoiding Airports 0.08 1396 948 178 19% 7.1Hard en
Circle of Friends 0.15 1079 309 69 22% 6.7Hard en
Cookie Cutter 1.81 2276 168 35 21% 6.1Hard en
Double Sort 0.38 982 37 8 22% 7.8Hard en
Early Orders 0.01 418 271 65 24% 6.3Hard en
Ketek Counting 0.06 1008 69 27 39% 7.3Hard en
Leaderboard Effect 0.76 1161 88 36 41% 5.4Medium en
Permutation CFG 0.25 2906 31 13 42% 7.0Hard en
Problem Set Construction 0.01 940 28 19 68% 3.8Medium en
Rainbow Roads 0.02 854 630 187 30% 5.8Hard en
Special Cycle 0.00 7515 100 4 4% 8.9Hard en
Token Game 0.24 1175 66 20 30% 8.0Hard en
XOR Island 0.00 623 122 37 30% 7.2Hard en